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Light detection means (e.g., with photodetector)

Subclass of:

345 - Computer graphics processing and selective visual display systems

345204000 - DISPLAY DRIVING CONTROL CIRCUITRY

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DocumentTitleDate
20110175873METHOD FOR DRIVING LIQUID CRYSTAL DISPLAY DEVICE - In an image signal writing period, a first image signal is supplied to a first liquid crystal element and a first capacitor from a first signal line. In a backlight lighting period, display is performed in a light-transmitting pixel portion in response to the first image signal. In a black grayscale signal writing period, a signal for black display is supplied to a second liquid crystal element and a second capacitor from a second signal line. In a still image signal writing period, a second image signal is supplied to the first liquid crystal element, the first capacitor, the second liquid crystal element, and the second capacitor from the first signal line. In a still image signal holding period, display is performed in the reflective pixel portion in response to the second image signal.07-21-2011
20110175871DISPLAY DEVICE - Dynamic range is widened in a display device with a photosensor that can read an image due to having a photodetection element inside a pixel thereof. A sensor driving circuit switches ON a reset signal (RST) that is supplied via reset signal bus line, and after a predetermined time has elapsed, switches ON a readout signal (RWS) that is supplied via readout signal bus line. Thus, in the photosensor, from which a photosensor signal is output in accordance with an amount of light received by the photosensor in the predetermined time, the capacitance of a capacitor provided in the photosensor is made variable from when the reset signal (RST) is supplied to the photosensor until when the predetermined time has elapsed.07-21-2011
20110199352SEMISPECULAR HOLLOW BACKLIGHT WITH GRADIENT EXTRACTION - A backlight that includes a front reflector and a back reflector that form a hollow light recycling cavity including an output surface is disclosed. The backlight also includes a semi-specular element, and a light extraction element disposed within the hollow cavity. The light extraction element has a gradient specularity. The backlight also includes one or more light sources to inject light into the hollow light recycling cavity, where the one or more light sources are configured to inject light over a limited angular range.08-18-2011
20130044092DISPLAY DEVICE AND DRIVING METHOD THEREOF - Exemplary embodiments of the present invention provide a display device including a plurality of sensing unit groups consisting of a plurality of sensing units and arranged in a matrix form. The display device further includes a plurality of gate lines connected to the plurality of sensing units included in a first sensing unit group, at least one sensing signal line connected to the plurality of sensing units, a scan driver transmitting gate signals to the gate lines, and a sensing signal processor processing a sensing signal transmitted by the sensing signal line. The gate lines transmit the gate signals according to different gate clock signals.02-21-2013
20100164923Driving system for display device - A driving system of the present invention for use in a displaying device is provided with a pseudo bit-depth extension section. In the pseudo bit-depth extension section, a noise pattern is added to upper-n-bit data of an input signal D07-01-2010
20100164921DISPLAY APPARATUS - Improvement of the image quality and position detection accuracy is implemented. Operation of a backlight 07-01-2010
20090195524MULTIMEDIA SYSTEM AND REMOTE CONTROL DEVICE THEREOF - A multimedia system and a remote control device are provided. The multimedia system includes a remote sensor, a wireless transmitter, and a display apparatus. The remote sensor is used for sensing an environmental luminance. The wireless transmitter is used for transmitting a control signal corresponding to the environmental luminance. The display apparatus includes a light source and a wireless receiver. The display apparatus receives the control signal via the wireless receiver and adjusts a brightness level of the light source based on the control signal.08-06-2009
20120169685ELECTRICAL DEVICE WITH LIGHT CONDUIT SYSTEM - An electrical device includes a screen with an aperture formed therein. The device includes a light source, a light sensor and a light conduit. The light conduit is operatively positioned between the aperture on one side and the light source and light sensor on the other. When the light source is activated, some of the light energy emitted therefrom is received in the light conduit. This light energy can travel through the light conduit to the aperture, through which the light energy can exit the device, thereby providing notice to a user of some condition. Light energy received in the aperture from outside the device can enter the light conduit and pass therethrough to the light sensor. The brightness of the screen can be adjusted based on the amount of light energy received by the light sensor.07-05-2012
20130044093DISPLAY AND METHOD OF DETERMINING A POSITION OF AN OBJECT APPLIED TO A THREE-DIMENSIONAL INTERACTIVE DISPLAY - A display includes a backlight source, display panel, first light source, and controller. The display panel includes a sensor array for sensing first reflection light generated from an object reflecting first detection light. The first detection light is generated by the backlight source for locating a coordinate of a projection point of the object on the display panel. The first light source is disposed in a first side of the display panel, for repeatedly transmitting second detection light of different transmitting angles to the object at different time to generate a second reflection light. The second reflection light is sensed by the sensor array. The controller is for performing a corresponding operation according to a transmitting angle of the first light source and the coordinate of the projection point when brightness value of the reflective light is substantially greater than a predict value.02-21-2013
20100013813DISPLAY DEVICE - Provided is a display device that has a photodetection element within a pixel and can calibrate automatically a photo sensor signal during an operation of the display device. A sensor row driver (01-21-2010
20080259067METHOD FOR ADJUSTING BACKLIGHT BRIGHTNESS AND ELECTRONIC DEVICE USING THE SAME - A method for adjusting backlight brightness of a screen, including the following steps of: detecting a brightness of ambient light; collecting the ambient light; adjusting a proportional ratio between collected light and light emitted from an internal light source according to the brightness of the ambient light; coupling the collected light with the light emitted from the internal light source according to the proportional ratio. An electronic device using the method is also disclosed.10-23-2008
20110193838Driving Device, Driving Method, and Flat Panel Display - A driving device for a flat panel display includes a distance detection module for detecting a distance between a base point of a housing of the flat panel display and a user, to generate a detection result, and a control module for adjusting output effects of the flat panel display according to the detection result.08-11-2011
20090122039DISPLAY APPARATUS AND ELECTRONIC DEVICE PROVIDED WITH THE SAME - In a display apparatus having an active matrix substrate, a counter substrate provided so as to be opposed to a pixel array region of the active matrix substrate, and a display medium provided in a gap between the active matrix substrate and the counter substrate, an optical sensor (05-14-2009
20120176356DISPLAY DEVICE - A plurality of sensor pixel circuits are disclosed for detecting a difference between an amount of light when a backlight is turned on and an amount of light when the backlight is turned off are arranged in a pixel region. The backlight is turned on and off a plurality of times, respectively, in a one-frame period. Each of reset for the sensor pixel circuits and read from the sensor pixel circuits is performed in parallel, each in a line sequential manner over almost the one-frame period. A plurality of sensor pixel circuits of two types for separately detecting an amount of light when the backlight is turned on and an amount of light when the backlight is turned off may be arranged in the pixel region, and a difference circuit may be used for obtaining a difference between the two types of amounts of light.07-12-2012
20130076712Distributed Light Sensors for Ambient Light Detection - An electronic device may have a display with a brightness that is adjusted based on ambient light data from multiple ambient light sensors. Sensors that are shadowed can be ignored. A touch sensor array in the display may have electrodes that overlap ambient light sensors. When a touch sensor signal indicates that an external object is covering one of the ambient light sensors, data from that ambient light sensor can be discarded. The ambient light sensors may include a primary ambient light sensor such as a human-eye-response ambient light sensor and may include an array of secondary ambient light sensors such as non-human-eye-response sensors. The secondary ambient light sensors may be formed on a display layer such as a thin-film-transistor layer and may be formed from thin-film materials. An algorithm may be used to dynamically calibrate non-human-eye-response ambient light sensors to the human-eye-response ambient light sensor.03-28-2013
20100118007LIQUID CRYSTAL DEVICE AND METHOD OF DRIVING THE SAME - A liquid crystal device comprising, at least, a liquid crystal element comprising at least a pair of substrates and a liquid crystal material disposed between the pair of electrodes, and electric field-applying means for applying an electric field to the liquid crystal element. The electric field-applying means applies a reverse electric field (−T05-13-2010
20130082992ELECTRONIC APPARATUS - According to one embodiment, an electronic apparatus is provided with a housing, display module, holder, and camera module. The housing has a front surface formed with an opening. The display module is accommodated in the housing and includes a screen exposed in the opening. The holder is secured to the display module. The camera module is held by the holder so that it can capture an image outside the housing.04-04-2013
20130207952Display Screen and Terminal Device Using Same - A display screen, terminal device using same and method for controlling same are described. The display screen includes a display panel portion configured to display an image based on inputted image data; a transparent fixing component, which is located above the display panel portion, configured to protect the display panel portion; and a camera unit provided on a first area of the display panel portion. By way of the above configuration, a user looks directly at the display screen during a video call or video chat. In this way, the user looks directly at the camera component which takes a video of the user, so that the users participating in the video call feel they are achieving eye contact, thus enhancing the experience of video calls and chats.08-15-2013
20100073340IMAGE COMPENSATION DEVICE, IMAGE COMPENSATION METHOD, AND A METHOD FOR SETTING IMAGE COMPENSATION VALUES - An image compensation device includes a transform unit configured to convert a value obtained by multiplying an intensity of the ambient light by a reflection ratio to a value of the same form as a first gradation value, and acquire a second gradation value, a subtracter to subtract the second gradation value from a third gradation value obtained through the first inverse transform performed on a first gradation value, and acquire a fourth gradation value, a transform unit configured to perform a second inverse transform on the fourth gradation value and acquire a fifth gradation value, and a storage unit configured to store a look-up table in which the fifth gradation value is associated with the first gradation value, as a correction value which should be applied to the display panel in place of the first gradation value.03-25-2010
20100073339System and method for correcting gamma - Disclosed is a system and method for correcting a gamma for shortening a gamma correction time period and improving gamma correction efficiency and reliability thereof, and simplifying a gamma correction device for reducing a production cost of image display devices.03-25-2010
20130207950IMAGE DISPLAY APPARATUS - In an image display apparatus which projects and displays an image by scanning emitted light from light sources by a reflective mirror, a correction unit calculates a threshold value and a slope efficiency of a light amount vs. current characteristic of each of the plurality of light sources, from a first light amount value obtained by measuring a light amount when an input image signal agrees with a first reference signal level and a second light amount value obtained by measuring a light amount when the input image signal agrees with a second reference signal level; and corrects, when a calculation result of the threshold value and the slope efficiency varied after a predetermined time, a threshold current and also make a correction so that a light amount ratio of the light sources becomes the same as an initial value of a slope efficiency ratio.08-15-2013
20130207949DISPLAY DEVICE AND METHOD FOR ADJUSTING BRIGHTNESS OF THE DISPLAY DEVICE - A method for adjusting brightness of a display device acquires optical signals from a plurality of light sensors positioned on the display device. The optical signals are converted into digital signals. An ambient brightness value is determined according to the digital signals. If the ambient brightness value is not less than a predetermined value, a calibration brightness value of the display device is calculated according to the ambient brightness value. If the calibration brightness value is equal to zero and the display device has received video signals during a predetermined time interval, a current brightness value of the display device is maintained. If the calibration brightness value is not equal to zero and the display device has received the video signals during the predetermined time interval, the current brightness value of the display device is adjusted according to the calibration brightness value.08-15-2013
20130082993APPARATUS AND METHOD FOR CONTROLLING IMAGE OUTPUT IN PROJECTOR APPARATUS - An apparatus and method for controlling image output in a projector apparatus are provided. An ambient illuminance value of the projector apparatus is measured, and a parameter value used to determine brightness of an image is adjusted depending on the measured ambient illuminance value. The image is processed based on the adjusted parameter value, contributing to enhancement of visibility of the output image.04-04-2013
20130082991DISPLAY ADJUSTING DEVICE AND DISPLAY ADJUSTING METHOD - A display adjusting device adapted for adjusting display parameter(s) of a display unit includes a light sensing unit for sensing an environmental illumination associated with the display unit; an image capturing unit for capturing an image of a user in front of the display unit; and a controlling unit, electrically connected to the display unit, the light sensing unit and the image capturing unit, for selectively adjusting a first display brightness of the display unit to a second display brightness according to the environmental illumination, calculating a distance between eyes of the user and the display unit according to the image, and selectively adjusting the second display brightness to a third display brightness according to the distance.04-04-2013
20110216050APPARATUS AND METHOD FOR ENHANCING READABILITY OF A CHARACTER - A method and apparatus are provided for enhancing the readability of a character. The method includes determining ambient light of a mobile terminal and controlling background color and character color of a character image according to the determined ambient light. The method may further include performing an additional control according to the types of displays when controlling the background color and character color. Through this, it is possible to display a character image with enhanced visibility, while minimizing current consumption.09-08-2011
20130207948TRANSPARENT DISPLAY APPARATUS AND METHOD FOR OPERATING THE SAME - A transparent display apparatus includes a transparent image panel including a plurality of sub-pixels, a data driver to apply a data signal to the sub-pixels, a gate driver to apply a gate driving signal to the sub-pixels, a timing controller to control the data driver and the gate driver in response to a first image signal, and a window disposed on a surface of the transparent image panel and including a plurality of light sensors arranged thereon. Each of the light sensors senses an external incident light and applies a sensing signal corresponding to the sensed external incident light to the timing controller, and the timing controller applies a second image signal to the data driver on the basis of the sensing signal and the first image signal.08-15-2013
20130207947VISUAL DISPLAYS FOR AN AIRCRAFT FLIGHT DECK - A cockpit for an aircraft includes a windscreen through which light may pass, at least one seat spaced from and facing the windscreen, a flight deck having at least a portion disposed below the windscreen and having at least one head down display having an adjustable brightness that may be set by a brightness signal, a camera having a field of view including at least a portion of the at least one seat and outputting an image signal indicative of luminance information within the field of view, and a processor operably coupled to the camera and the head down display and configured to receive the image signal, determine a luminance of at least a portion of the field of view, determine a brightness for the head down display based on the determined luminance, and outputting to the head down display a brightness signal corresponding to the determined brightness.08-15-2013
20130033471DISPLAY APPARATUS - A display apparatus includes first, second, and third gate driving chips applying gate signals to gate lines. A gate driving voltage is applied to the first gate driving chip and a gate driving voltage of the same level is applied to the second and third gate driving chips. In addition, the display apparatus includes a plurality of photo-sensors and first, second, and third scan driving chips applying scan signals to scan lines connected to the photo-sensors. A scan driving voltage is applied to the first scan driving chip and a scan driving voltage of the same level is applied to the second and third scan driving chips.02-07-2013
20100045642DISPLAY DEVICE - A first shield electrode (02-25-2010
20100045641ELECTRICAL DEVICE CAPABLE OF ADJUSTING DISPLAY IMAGE BASED ON A ROTATION OF A WEB CAMERA AND METHOD THEREOF - An electrical device having a display screen to adjust displaying image based on a rotation of a web camera. The web camera is rotatably installed on one side of the frame surrounding the display screen. The web camera captures an image data in a first direction or a second direction. An image sensor generates a plurality of brightness signals based on the image data. A processing unit is used for determining the display to show the image data in a first mode or a second mode based on the plurality of brightness signals.02-25-2010
20100110051CONTROL METHOD FOR LENS DRIVE SCREEN - The present invention provides a control method and its system of lens drive screen, wherein a lens connected to electronic device is displaced, then a displacement signal is generated and sent to the microprocessor of electronic device for identification, and then the displacement signal is converted into a control signal to control the display screen of the electronic device; the system mainly comprising: a lens, used for acquiring initial images and shift images; a control program, loaded into an electronic device; it employs shape detection algorithm and target tracking algorithm to position the initial images and track the varying shift, rotation or zooming of the lens as well as the relative displacement, and convert it into a displacement signal to the electronic device; then, the microprocessor of the electronic device converts the displacement signal into a control signal so as to control on-screen operation by the application.05-06-2010
20100110052INFORMATION PROCESSING APPARATUS - In an information processing apparatus, an open/close detecting driver detects whether the information processing apparatus is opened or closed. If the open/close detecting driver detects that the information processing apparatus is opened or closed, an open/close-event handler determines whether the information processing apparatus is in an unused state. On the basis of this determination, the open/close-event handler controls lighting of a backlight.05-06-2010
20130027370SYSTEM AND METHOD FOR DYNAMIC LOAD SHARING BETWEEN ELECTRONIC DISPLAYS - A system and method for allocating power to a plurality of displays is disclosed. An exemplary system preferably includes an AC current sensor, a power load sharing controller, ambient light sensors for each display, and a brightness controller for each display. A maximum total current draw may be selected. The ambient light contacting each display may be measured and a corresponding desired brightness calculated. Depending on the present amount of current draw, the system determines if the displays can be driven at the desired brightness without exceeding the maximum total current draw. If yes, the displays are driven at their desired brightness. If no, the desired brightness for each display may be slightly reduced to prevent exceeding the maximum total current draw. Thus, as the ambient light varies between the displays, the available power may be shared.01-31-2013
20130027372PROJECTION DEVICE - Various embodiments relate to a projection device for projecting useful data onto a projection surface. In this case, a first laser device generates radiation having a first wavelength and a second laser device generates radiation having a second wavelength. The spots of the respective beams are detected by a sensor device and fed to a drive device for the laser devices. Said drive device temporally shifts the drive signals relative to one another in such a way that a horizontal distance between the spots is minimized. Various embodiments furthermore relate to a corresponding method for projecting useful data.01-31-2013
20130027371ELECTRONIC DEVICE, METHOD FOR ADJUSTING COLOR SATURATION, PROGRAM THEREFOR, AND RECORDING MEDIUM - An electronic device (01-31-2013
20100328283WAVE GUIDE FOR IMPROVING LIGHT SENSOR ANGULAR RESPONSE - Electronic displays encounter visibility issues due to varying ambient light conditions. An ambient light sensor can be provided to sense ambient light and dynamically adjust display brightness to compensate for changes in ambient light. A wave guide for improving angular response in a light sensor is provided.12-30-2010
20120182278Methods and Apparatus for Estimating Light Adaptation Levels of Persons Viewing Displays - Methods and apparatus for estimating adaptation of the human visual system take into account the distribution of light detectors (rods and cones) in the human eye to weight contributions to adaptation from displayed content and ambient lighting. The estimated adaptation may be applied to control factors such as contrast and saturation of displayed content.07-19-2012
20120182277DISPLAY PANEL HAVING EMBEDDED LIGHT SENSORS - A display panel includes a plurality of pixels disposed on a first panel substrate of first and second panel substrates that face each other and cooperate to display an image. The second panel substrate includes a base substrate, a read-out line, a first insulating layer, a scan line, a switching device, and a light sensor. The read-out line is disposed on the base substrate and extended in a direction. The first insulating layer is disposed on the read-out line. The scan line is extended to cross the read-out line and disposed on the first insulating layer. The switching device includes a first electrode connected to the scan line, a second electrode connected to a read-out line, and a third electrode spaced apart from the second electrode. The light sensor is structured to selectively detect lights of predetermined wavelengths and connected to the third electrode of the switching device.07-19-2012
20120182276AUTOMATIC ADJUSTMENT OF DISPLAY SYSTEMS BASED ON LIGHT AT VIEWER POSITION - Methods, systems, and apparatuses are described for automatic adjustment of display systems based on ambient light intensity. Ambient light intensity of a viewing environment is determined from a location of a display system or from a location separate from the display system. Ambient light information may be collected using light sensor(s) or image sensor(s) of a camera or other imaging capturing device. When a viewer is present, ambient light intensity may be determined from a perspective of the viewer. The determined light intensity information is used to determine a white balance level. A characteristic of the display system is adjusted based on the determined white balance level.07-19-2012
20120182275BACKGROUND BRIGHTNESS COMPENSATING METHOD AND SYSTEM FOR DISPLAY APPARATUS - A system and a method of compensating background brightness for a display apparatus are disclosed. The display apparatus has a screen for displaying images, and said method comprises steps of: (a) detecting an intensity of ambient light in the front of the screen; (b) obtaining a representative brightness of an image displayed on the screen; (c) determining a backside spotting reference reflective luminance value according to the ambient light intensity and the image representative brightness; and (d) spotting in the rear of the screen by using a lighting module and thus making a spotting intensity to achieve the reference reflective luminance value. The said method and system can reduce eye fatigue and discomfort of viewers.07-19-2012
20130088469MICRO-SHUTTER DISPLAY DEVICE - Disclosed is a display device and, more particularly, a micro-shutter display device including: a light source emitting light; a lower substrate having an optical conversion unit performing at least any one of a function of converting back light output from a light source into primary colors corresponding to sub-pixels and a function of reflecting ambient light having a primary color band corresponding to sub-pixels; a micro-shutter opening and closing a path of light output from the optical conversion unit; and a driving circuit supplying a driving signal to a movable unit electrode or a fixed counter electrode, wherein the micro-shutter includes: a shutter micro-structure comprised of a shutter blade blocking light output from the optical conversion unit and a shutter aperture allowing light output from the optical conversion unit to be transmitted therethrough; an elastic element connected to the shutter micro-structure to provide elastic restoring force when the shutter micro-structure structure is driven; a movable unit electrode configured to be connected to the shutter micro-structure; and a fixed counter electrode spaced apart by a certain interval from the movable unit electrode.04-11-2013
20130069924DATA DISPLAY ADAPTED FOR BRIGHT AMBIENT LIGHT - Systems and method to generate more readable modified images that are presented on electronic displays in bright ambient light, such as direct sunlight. Images normally presented in lower ambient light are modified to generate modified images that have higher contrast and that contain less information. For example, modified images contain pixels that are either “on” or “off” and may be inverted to present a black on white background image on the display. Some information, such as text fields or icons, is removed from the modified image to increase readability in bright ambient light. A backlight level of the display is also able to be increased in bright ambient light.03-21-2013
20110001737Methods and Systems for Ambient-Adaptive Image Display - Aspects of the present invention comprise systems and methods for determining image content characteristics, determining ambient illumination conditions, selecting an appropriate backlight level based on the image content characteristics and the ambient illumination conditions and selecting a tone scale curve for image enhancement wherein the tone scale curve is intended to enhance the image for display under the ambient illumination conditions using the selected backlight level.01-06-2011
20100134457DISPLAY DEVICE - The present invention provides a display device with an image capture function including optical sensors in its pixels, in particular, a display device which allows a reduction in the size of a substrate and in power consumption by reducing the area of a peripheral region not contributory to displaying. The display device includes: an active matrix substrate (06-03-2010
20090303216DISPLAY DEVICE AND CONTROL METHOD THEREOF - Display device technology, in which an illumination sensor senses illumination of surroundings of a location where a display device is installed and image signals to be displayed are received. An average picture level of a received signal is detected and a controller controls brightness of a backlight associated with the display device based on the illumination sensed by the illumination sensor and the detected average pixel value.12-10-2009
20090303215DISPLAY CONTROL APPARATUS AND DISPLAY CONTROL METHOD - A display control apparatus includes an external light detection unit configured to detect ambient brightness of a display apparatus, a variation detection unit configured to detect a variation of orientation of the display apparatus, and a control unit configured to adjust display luminance of the display apparatus according to the ambient brightness detected by the external light detection unit and the variation detected by the variation detection unit.12-10-2009
20120218239BACKLIGHT CONTROL OF ELECTRONIC DEVICE - Embodiments are provided herein which may be utilized to eliminate stray light emissions from an LED while ambient light is being sensed. As such, dynamic backlight control systems for use with an electronic display are presented including: an ambient light sensor for sensing ambient light intensity; a backlight for illuminating the electronic display; a switch for controlling the backlight, the switch configured to set a backlight condition to ON or OFF in response to a backlight-off frequency such that the ambient light sensor senses the ambient light intensity in the absence of the backlight; a logic module for determining a backlight level in response to the ambient light intensity; and a backlight control circuit for adjusting the backlight to the backlight level in response to the ambient light intensity.08-30-2012
20120218238DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device includes a current source, a first transistor, a second transistor, and a light-emitting element. One electrode of the light-emitting element is electrically connected to the current source through a source and a drain of the first transistor. The same electrode of the light-emitting element is also electrically connected to a wiring through a source and a drain of the second transistor.08-30-2012
20130057528TOUCH-SENSOR-EQUIPPED DISPLAY DEVICE - Provided is a display device having a photodetecting element in a pixel, and having an input function that is not dependent on light environments. This is a display device having an optical sensor in a pixel region. The optical sensor includes a first sensor pixel circuit that outputs a sensor signal corresponding to electric charges accumulated during an accumulation period in an ON time of a light source for the sensor; and a second sensor pixel circuit that that outputs a sensor signal corresponding to electric charges accumulated during an accumulation period in an OFF time of the light source. A sensor driving circuit for driving the first sensor pixie circuit and the second sensor pixel circuit supplies reset signals (RST03-07-2013
20130057527DISPLAY DEVICE - Provided is a display device that is capable of ensuring a wide dynamic range of an optical sensor even in the case where an offset due to ambient temperature changes is compensated with use of an output of a reference element. The display device has optical sensors in a pixel region of an active matrix substrate (03-07-2013
20090091560METHOD AND APPARATUS TO CONTROL DISPLAY BRIGHTNESS WITH AMBIENT LIGHT CORRECTION - An ambient light sensor produces a current signal that varies linearly with the level of ambient light. The current signal is multiplied by a user dimming preference to generate a brightness control signal that automatically compensates for ambient light variations in visual information display systems. The multiplying function provides noticeable user dimming control at relatively high ambient light levels.04-09-2009
20110012879DISPLAY DEVICE HAVING OPTICAL SENSORS - A liquid crystal panel with built-in sensors 01-20-2011
20110012878LIGHT SENSOR TEST UNIT, METHOD OF TESTING LIGHT SENSOR USING THE SAME AND DISPLAY APPARATUS - In a light sensor test unit, a test circuit is built in a display panel and connected to an output node of a light sensor which senses an intensity of an external light. When external light having a predetermined intensity is provided to the light sensor, the test circuit outputs a driving signal in response to a sensing signal output from the output node. A test pixel part includes pixels selected from a plurality of pixels arranged in the display panel and receives the driving signal from the test circuit to display a gray-scale corresponding to the driving signal. A brightness measurer measures a brightness corresponding to the gray-scale displayed in the test pixel part to compare the measured brightness with a predetermined brightness, thereby testing whether the light sensor built in the display panel is normally operated.01-20-2011
20090160833Laser Projection White Balance Tracking - The radiance of a laser diode is a function of laser diode drive current. The radiance is also a function of other factors, such as age and temperature. A laser projection device includes laser diodes to generate light in response to a commanded radiance, and also includes photodetectors to provide a measured radiance. The commanded radiance and measured radiance are compared, and drive currents for the laser diodes are adjusted to provide luminance and color balance tracking.06-25-2009
20120223925PHOTODETECTION CIRCUIT, PHOTODETECTION METHOD, DISPLAY PANEL, AND DISPLAY - There is provided a photodetection circuit and a photodetection method capable of obtaining high detection accuracy while reducing burn-in, and a display panel and a display including the above-described photodetection circuit. A photodetection circuit detecting incident light includes: a transistor provided between a fixed power supply line and a photodetection line; a photodiode provided between a gate of the transistor and a control line, and having a cathode directed toward the control line; a first capacitor connected, between the gate of the transistor and the control line, in parallel with the photodiode; and a second capacitor provided between the gate of the transistor and the fixed power supply line.09-06-2012
20120223924IMAGE PROCESSING APPARATUS - An image processing apparatus corrects an input image based on a correction amount determined based on an illuminance, and adjusts a specifying value for specifying brightness of a backlight of a display based on the correction amount.09-06-2012
20110063269FLAT PANEL DISPLAY AND METHOD FOR DRIVING THE FLAT PANEL DISPLAY - A flat panel display including a display unit, the display unit displaying a first image, an input unit, the input unit being positioned adjacent to the display unit when the display unit is folded toward the input unit, at least one sensor, the sensor detecting luminance information of a second image displayed on the display unit when the display unit is folded toward the input unit, and an optical correction unit, the optical correction unit receiving the luminance information from the sensor and correcting a luminance of the display unit using the luminance information.03-17-2011
20110063268Display calibration systems and related methods - Display calibration systems and related methods are disclosed that use photo-sensitivity of LEDs to correct for variations between LEDs during initial production and over lifetime for display systems. The display devices include arrays of LEDs and use photo-sensitivity of the LEDs to correct for variations between LEDs. Such LED arrays can produce images directly as in LED billboards and sports arena scoreboards, and smaller Organic LED (OLED) displays, or can produce the backlight for LCD screens for instance. Variations in LED brightness and color can be compensated for in order for such a display to have uniform color and brightness. This compensation is performed in the embodiments disclosed by measuring the signal induced on each LED by uniform incident light as a measurement of the photo-sensitivity of the LEDs.03-17-2011
20130063408PROJECTION DEVICE, WHICH COMPRISES A PROJECTOR, A PROJECTION SURFACE, AND A DATA PROCESSING SYSTEM, AND METHOD FOR OPERATING SAID PROJECTION DEVICE - A projection device and to a method for operating the device. The projection device includes a projector, a projection surface, and a data processing system, wherein information about the image on the projection surface is transferred to the data processing system and wherein the data processing system controls the projector. The projection surface is designed as a planar optical waveguide, in which photoluminescent particles are integrated and on which a plurality of photoelectric sensors are attached, which are able to couple light out of the waveguide mode and to thereby generate an electrical signal, the strength of which depends on the intensity of the light coupled out at the photodetector.03-14-2013
20130063407DISPLAY DEVICE - Disclosed is a display device that can compensate for variations of light-detecting element while securing a wide dynamic range of light sensors. This is a display device equipped with light sensors having operation modes for one frame period, which are: a sensor driving mode for obtaining sensor signals, a first correction data acquisition mode for obtaining a first correction data, and a second correction data acquisition mode for obtaining a second correction data. This display device further includes a memory that stores light sensor signal levels obtained, under a controlled ambient environmental condition, by driving the light sensors in the above-mentioned three modes as offset elimination data. A signal-processing circuit uses the first correction data and the second correction data, and the light sensor signal level corrected with the offset elimination data to correct the light sensor signal obtained in the sensor driving mode.03-14-2013
20130162611APPARATUS AND METHOD FOR CONTROLLING SCREEN BRIGHTNESS IN A MOBILE TERMINAL - An apparatus and a method for controlling screen brightness in a mobile terminal are provided. Particularly, an apparatus and a method for providing information regarding a currently set screen brightness degree and simplifying a process for changing a brightness control mode in a mobile terminal are provided. A sensing unit of the terminal determines an amount of ambient light during an automatic brightness control mode that controls the screen brightness, and a screen manager controls the screen brightness according to either a user mode or an automatic mode where the transition from the automatic mode to the user mode is simplified.06-27-2013
20120194492ACTIVE MATRIX DEVICE - An active matrix device is provided which includes N array elements arranged spatially in a sequence of first through Nth array elements (where N is an integer ≧2); the N array elements each including a write input for receiving a corresponding write input signal which controls operation of the array element, and a sense circuit for sensing a property of the array element and providing a sensor output based on the sensed property; and further including a manipulation circuit including logic circuitry connecting the sensor output from an nth array element in the sequence directly to the write input of an (n+1)th array element and configured to provide the write input signal to the write input of the (n+1)th array element based on the sensor output from the nth array element.08-02-2012
20090237382DISPLAY DEVICE - A display device includes: first and second photosensors; a reader; a light detector outputting the light amount detected by the photosensors; a first circuit outputting a first signal based on incident light entering the first photosensor; and a second circuit outputting a second signal based on dimmed incident light entering the second photosensor. The reader includes: a coefficient calculator calculating a first measurement ratio of the first signal to the second signal, and a power correction coefficient; a rate calculator deriving modified power coefficients from the power correction coefficient, calculating a second measurement ratio of the power-corrected first and second signals, and calculating a slope correction coefficient; and an output unit deriving modified proportional coefficients from the slope correction coefficient, and correcting the power-corrected first and second signals using the modified proportional coefficients to yield outputted initial light amount signals.09-24-2009
20090237381Display device and method for luminance adjustment of display device - Disclosed herein is a display device that displays a desired image on an effective pixel area in which sub-pixels are arranged in a matrix, the display device including: an ambient light sensor configured to be provided in a predetermined sub-pixel in the effective pixel area, the ambient light sensor receiving ambient light and outputting a result of detection of an ambient light amount for adjustment of luminance of the image; and a hue correction mechanism configured to correct local hue change due to provision of the ambient light sensor in the predetermined sub-pixel.09-24-2009
20090009501Luminance sensing apparatus - The invention discloses a luminance sensing apparatus for sensing the luminance of any area on a panel. The luminance sensing apparatus comprises a base, a first shaft, a first actuator, a second shaft, a second actuator, and at least one luminance sensor. The first shaft is pivotally connected to the base, and the second shaft is pivotally connected to the first shaft. The luminance sensor is disposed on the second shaft. The first actuator is used for actuating the first shaft to rotate with respect to the base, and the second actuator is used for actuating the second shaft to rotate with respect to the first shaft, such that the luminance sensor on the second shaft is capable of sensing luminance of any area on the panel. Accordingly, the luminance on the panel can be uniformly calibrated.01-08-2009
20100085340Display apparatus - A display apparatus includes a panel in which a plurality of pixels illuminated by self-luminous elements are arranged in a matrix and a photodetector disposed on a back surface of the panel for measuring the luminance of the pixels. Each of the pixels has an aperture portion on a reflective layer provided below a luminous layer, to transmit light emitted from the luminous layer.04-08-2010
20120113074ILLUMINANCE SENSOR AND DISPLAY DEVICE INCLUDING SAME - Disclosed are an illuminance sensor which has a spectral-response characteristic approximate to the spectral luminous efficacy and which has a low circuit complexity, and a display device including the illuminance sensor. The illuminance sensor includes (i) a current output circuit which, with use of a bitstream signal of a first analog-digital conversion circuit for carrying out an analog-digital conversion with respect to a first current flowing through a first light receiving element, outputs a current corresponding to the first current and (ii) a second analog-digital conversion circuit which receives a third current obtained by subtracting a current from a second current flowing through a second light receiving element and which thus carries out an analog-digital conversion with respect to the third current.05-10-2012
20120235967DISPLAY DEVICE - Provided is a display device that can determine an event in accordance with an input operation without using a complex circuit configuration for image processing by simplifying a difference image processing. The display device is provided with a driver circuit for outputting a first control signal, which indicates a first detection period including an ON period of a light source, and a second control signal, which indicates a second detection period not including the ON period of the light source, and performing reset and read-out operations for sensor pixel circuits. The display device is further provided with a difference circuit 09-20-2012
20120235966DISPLAY CONTROL APPARATUS - An image display system includes a light sensor operable to change a detection sensitivity. The light sensor outputs a signal according to an intensity of external light exerting an influence on a screen of a display apparatus and to the detection sensitivity. An illuminance acquisition part of a display control apparatus acquires illuminance by the external light based on the signal output from the light sensor. Moreover, a display adjuster adjusts a displaying state of the display apparatus in accordance with the illuminance by the external light acquired by the illuminance acquisition part. A sensitivity changer periodically alternates between a “low sensitivity” of the detection sensitivity and a “high sensitivity” of the detection sensitivity of the light sensor. Thus, even when changing significantly, the illuminance by the external light can be accurately and speedily acquired.09-20-2012
20100149147DIGITAL PHOTO FRAME HAVING A BUILT-IN SCANNER - The present invention relates to a digital photo frame, which includes a scanner to convert a picture into an image data file, wherein the scanner is a sheetfed scanner, and the scanner can reduce the scanning size limitations of a flatbed scanner and to promote the utility of the digital photo frame.06-17-2010
20100090999Display device and the driving method thereof - A display device and a driving method thereof. The display device detects luminance data from an input video signal, detects the amount of change of the luminance data, detects contour of an image displayed from the input video signal, and emphasizes the detected contour to generate a converted input video signal. The display device compensates the converted input video signal by comparing a data size of the converted input video signal with that of the input video signal and controlling the data size of the converted input video signal to be less than that of the input video.04-15-2010
20110141078AMBIENT LIGHT DETECTION - Ambient light is detected by a photodiode circuit by measuring the time taken for a digital output of the photodiode circuit to change state in response to exposure of a photodiode of the photodiode circuit to that ambient light. A nominal time for state change is calculated based on photodiode circuit characteristics. Furthermore, an effective time for the photodiode circuit digital output to change state is determined in a calibration mode where the photodiode has been disconnected and a reference current is applied to the circuit. An illumination value of the detected ambient light is then calculated as a function of: the measured time, the effective time and the nominal time.06-16-2011
20110279426DISPLAY DEVICE AND METHOD FOR DRIVING SAME - Provided is a display device for carrying out seamless display so that a sense of strangeness is not given to a viewer or the sense of strangeness is reduced. In at least one embodiment, a display device includes a display panel on which a plurality of display elements are disposed in a matrix, the display panel having a frame area which is located at an end of the display panel and in which no display element is provided; a light guide element provided on the display panel, the light guide element changing a light path of part of light emitted from the plurality of display elements so that the part of light is guided to the frame area; a photosensor provided on the display panel, the photosensor detecting environment illuminance; an image signal correcting section which (i) corrects, in accordance with the environment illuminance detected by the photosensor, an image signal to be supplied to a display element included in an area where the light guide element is provided so that a reduction in luminance or coloring of display light of the image caused by the light guide element is reduced, and (ii) outputs a corrected image signal; and a driving section which drives the display element in accordance with the corrected image signal.11-17-2011
20110128263GRAY SCALE DISPLAY DEVICE - Video signals are subjected to necessary signal processing by a video signal processing unit 06-02-2011
20090309859Multidirectional Photodetector, A Portable Communication Tool Having Thereof and A Method of Displaying - A photodetector of the invention is characterized by having a plurality of detector elements that are arranged over a light-transparent substrate and are connected in parallel. A foldable portable communication tool having two display portions of the invention is characterized by including one photodetector which includes a plurality of detector elements connected in parallel.12-17-2009
20110298765Power Calibration of Multiple Light Sources in a Display Screen - A display device with multiple light sources includes a first detector for detecting a brightness of one or more different portions of the image formed on the display device, a second detector that measures output intensities of the light sources, and a controller that records correlation values that correlate input power settings of the light sources with the detected brightness and the measured output intensities. During operation of the display device, the controller applies the correlation values to determine the proper input power settings of the light sources so that brightness uniformity among the multiple light sources can be achieved.12-08-2011
20120105404DISPLAY DEVICE WITH LIGHT SENSORS - A recognition processing unit (05-03-2012
20110285682MICRO PROJECTOR DRIVING DEVICE AND DRIVING METHOD - A micro projector driving device and a driving method are provided, where pixels of the first and last images at a specified location are compared, and the light intensity of the light sources is then adjusted according to the compared results so as to avoid the continual display of images with different contrast requirements at the highest light intensity, thus saving power under a guaranteed visual effect, and prolonging the battery life of a portable micro projector. A higher power drive light source should be used for a static image rather than for a video image. Images are divided into sections, and then the pixels from each section are selected at random for comparison, therefore greatly reducing the amount of computing but still having a rather high accuracy.11-24-2011
20110285681IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD - The occurrence of the halo phenomenon caused in a display panel unit is detected in a liquid crystal display device that displays an image in the display panel unit including color filters of a plurality of colors by respectively controlling emission ratios of a plurality of LEDs emitting lights of colors respectively corresponding to the plurality of color filters. Upon detection, a part of the display panel unit, for example, the channel number and the vicinity thereof are set as a non-detection area in which the detection of the halo phenomenon is restricted and the remaining area is set as a detection area. The chroma of light, which corresponds to mixed light from the plurality of LEDs, is reduced by controlling the emission ratios of the LEDs on the basis of the detection result in the detection area, so that the color of light is closer to white.11-24-2011
20110285680Image display device, electronic apparatus, image display system, method of acquiring method, and program - An image display device includes: an image display section in which a plurality of pixels each having a display element are arranged, an imaging section capturing an image is arrangeable on the rear surface thereof, and a plurality of light-transmissive portions are provided in a region corresponding to the imaging section; and a diffraction correction section which, for image information acquired by the imaging section through a plurality of light-transmissive portions, performs diffraction correction processing for suppressing an influence appearing in the image information because of a diffraction effect in the light-transmissive portions.11-24-2011
20110298766LIGHT SENSING DEVICE HAVING A COLOR SENSOR AND A CLEAR SENSOR FOR INFRARED REJECTION - A light sensing device has a first filter to block visible light in a light path. The light sensing device also has a first color sensor and a clear sensor, to detect light in the light path after the first filter. A light intensity calculator computes a measure of the intensity of visible light in the light path, based on a difference between (a) an output signal of the first color sensor, and (b) an output signal of the clear sensor. Other embodiments are also described and claimed.12-08-2011
20110298764METHOD AND DEVICE FOR AUTOMATICALLY CONTROLLING LUMINANCE OF DISPLAY UNIT - A method and an apparatus for displaying and controlling a screen of a portable terminal device are provided. The apparatus includes a sensor for detecting illumination according to peripheral brightness, and a display unit for outputting display data of the portable terminal device, for storing gamma register values corresponding to luminance data, for displaying the display data on a screen, for converting the detected illumination into luminance, and for selecting a gamma register value corresponding to the luminance to control the brightness of the screen.12-08-2011
20110298763NEIGHBORHOOD BRIGHTNESS MATCHING FOR UNIFORMITY IN A TILED DISPLAY SCREEN - Brightness between the individual tiles of a tiled display system is matched for improved uniformity and overall brightness of images produced by the display system. Regions of the display system adjacent to a tile with low brightness performance are incremented in brightness from the brightness level of the low brightness tile to the brightness level of higher brightness tiles. By incrementing the brightness of such regions according to embodiments of the invention, perceived brightness uniformity of images produced by the tiled display system is maintained while maximizing the overall brightness of the display device. The regions used to increment brightness may be as large as an entire tile or as small as a single pixel element.12-08-2011
20120098806SYSTEM AND METHOD OF MODIFYING LIGHTING IN A DISPLAY SYSTEM - The present invention describes a display system. The display system includes a display, the display including a display screen capable of operating in a transparent mode; a lighting characteristic assessment component for determining the lighting characteristics of the content on the display screen and the lighting characteristics behind the display screen; and an adaptive lighting control component for controlling of an at least one lighting source and the lighting characteristics of the content on the display screen, wherein based on a comparison of the lighting characteristics of the content on the display screen and the lighting characteristics behind the display screen, modifying at least one of the lighting characteristics of the content on the display screen or the lighting characteristics of the at least one lighting source.04-26-2012
201102920103D GLASSES AND A 3D DISPLAY APPARATUS - Three-dimensional (3D) glasses according to the present disclosure are interconnected to a 3D display apparatus and include: a glass unit, a glass driving unit which drives the glass unit, an infrared (IR) sensor unit which receives a sync signal transmitted from the 3D display apparatus, a window unit which, when the 3D glasses are directed to the 3D display apparatus, transmits the sync signal to the IR sensor unit and transmits external IR light, incident from a direction different from the direction of the 3D display apparatus, away from the IR sensor unit, and a controlling unit which controls the glass driving unit based on the sync signal.12-01-2011
20110025661LIGHT SENSOR NOISE SUPPRESSION ARRANGEMENT AND METHOD THEREFOR - A light sensor arrangement is used to detect ambient light conditions. According to an example embodiment, a light detector arrangement (e.g., 02-03-2011
20100090996LCD DISPLAY WITH PHOTO SENSOR TOUCH FUNCTION - The present invention relates to a method for driving a display device having a panel having a display region and a peripheral region, a first photosensor member formed in the display region, and a second photosensor member formed in the peripheral region. In one embodiment, the method includes the steps of measuring an intensity of ambient light by the second photosensor member, and driving the first photosensor member according to the measured intensity of the ambient light, so as to sense a change of incident light caused by a touch on the display region.04-15-2010
20100090998Organic light emitting diode display - An organic light emitting diode (OLED) display that includes a first substrate having a display area, a photo sensor arranged on a first substrate external to the display area, and a condensing lens arranged at an upper portion of the photo sensor to condense external light into the photo sensor, allowing the photo sensor to more efficiently detect an amount of external light. In this OLED display, an automatic luminance control function can be efficiently performed by increasing a condensing efficiency of the photo sensor.04-15-2010
20100265228SELF-LUMINESCENT DISPLAY DEVICE AND ELECTRONIC APPARATUS - A self-luminescent display device includes a pixel unit in which a plurality of pixels including a self-luminescent pixel is arranged, an external light sensor which measures an external light intensity, a temperature sensor which measures an environmental temperature, an image correcting unit which corrects image data input to the image correcting unit on the basis of statistical data of the image data, a light adjusting unit which produces a light adjusting signal on the basis of a measurement signal of the external light sensor, a temperature control unit which produces a temperature correcting signal on the basis of a measurement signal of the temperature sensor, and a display control unit which produces a brightness correcting signal for correcting light emitting brightness of the pixels in the pixel unit on the basis of the light adjusting signal and the temperature correcting signal. The light emitting brightness of the pixels in the pixel unit is adjusted on the basis of the image data corrected by the image correcting unit and the brightness correcting signal.10-21-2010
20100265227INTELLIGENT DIGITAL PHOTO FRAME - A digital photo frame (DPF) includes a power management unit connected to a power source, configured for distributing power from the power source to the DPF; a display panel configured for displaying displayable media; a motion sensor configured for detecting whether there is someone around the DPF and producing a trigger signal when having detected that someone is around the DPF; a light detector configured for detecting current ambient light level and producing a light signal corresponding to the detected ambient light level; and a processing unit configured for adjusting brightness of the display panel according to the trigger signal and the light signal.10-21-2010
20100033457APPARATUS AND METHOD FOR DISPLAYING SCREEN ACCORDING TO INTENSITY OF BRIGHTNESS OF AMBIENT LIGHT - Disclosed are an apparatus and a method for display of a screen according to brightness intensity of ambient light. One or more characteristic values configuring display data is set to be higher than a preset color characteristic value when measured brightness intensity of ambient light is higher than preset brightness intensity of ambient light, and one of the set color characteristic values is converted to a contrast characteristic value and is displayed. Therefore, even when brightness intensity of ambient light is high, the user can accurately view a screen.02-11-2010
20110216051SYSTEM, METHOD AND PROGRAM FOR SPECIFYING PIXEL POSITION CORRESPONDENCE - When an image is projected on an arbitrary projection screen, correspondence between pixels in the image to be projected and pixels in projection means is specified. Reference pattern image group generating means 09-08-2011
20110261038ELECTRONIC DEVICE AND METHOD OF ADJUSTING VIEWING ANGLES OF LIQUID CRYSTAL DISPLAYS - In an electronic device and a method of adjusting a viewing angle of a liquid crystal display (LCD), a face recognition reference is established. The face recognition reference is compared with faces in an image which is captured by a camera unit to locate a matched face. An adjusted viewing angle of the LCD is computed according to a default viewing angle of the LCD and an angle between a perpendicular of the LCD and a line formed by connecting a center of the LCD and a center of two eyes in the matched face. A voltage value is computed according to the adjusted viewing angle, and a voltage is applied to the liquid crystal molecules of the LCD according to the voltage value to change the default viewing angle of the LCD to the adjusted viewing angle.10-27-2011
20090146983CIRCUIT AND METHOD FOR DRIVING SELF LIGHT-EMITTING DISPLAY DEVICE - Disclosed is a circuit for driving a self light-emitting display device which itself emits light when an electric or other energy is inputted thereto and a method thereof. According to the circuit and method, the self light-emitting display device can be driven more stably and with a higher efficiency by adjusting the number of used bits and luminance of respective color components in accordance with a luminance change of an external light and keeping a constant contrast ratio irrespective of the adjustment of the bit numbers.06-11-2009
20090146982Lighting Calibration System and Method - A lighting calibration system for a video display environment includes a video display and a lighting sensor, fixedly positioned in the environment, and a lighting detection system, coupled to the lighting sensor and controllable from outside the environment. The lighting detection system is configured to receive positionally and temporally unique signals from the lighting sensor, and to provide an indication when lighting conditions in the environment differ from a selected lighting standard, based upon the signals.06-11-2009
20090146981LIGHT DETECTION SYSTEM AND RELATED METHOD - The present invention provides a light detection system essentially including a light detection circuit for generating a light detection signal by performing a light detection process, an integration-period control circuit for generating a control signal based on the light detection signal, and an integration circuit for adjusting an integration period based on the control signal and generating a readout signal by performing an integration process on the light detection signal during the adjusted integration period. The present invention further provides a light detection method essentially including providing a plurality of integration periods, generating a light detection signal by performing a light detection process, selecting an integration period out of the provided integration periods based on the light detection signal, and generating a readout signal by performing an integration process on the light detection signal during the selected integration period.06-11-2009
20080284767DISPLAY DEVICE, CONTROL METHOD AND COMPUTER PROGRAM FOR DISPLAY DEVICE - A display device includes: a light emission amount detecting section which inputs video signals having linear property and detects an amount of light emission from the video signals; a light emitting time calculating section which calculates light emitting time of the light emitting elements based on the amount of light emission detected by the light emission amount detecting section; a light emitting time recording section which records the calculated light emitting time; a luminance acquiring section which, acquires luminance information of the light emitting elements using the light emitting time recorded in the light emitting time recording section; a coefficient calculating section which calculates coefficients by which the video signals are multiplied based on the luminance information acquired by the luminance acquiring section; and a coefficient multiplying section which multiplies the video signals by the coefficients calculated by the coefficient calculating section.11-20-2008
20110169795IMAGE DISPLAY APPARATUS AND IMAGE DISPLAY METHOD - It is expected to provide an image display apparatus and image display method that can reduce the risk that an image quality is undermined due to a halo phenomenon caused by the leak of light passing through a non-corresponding color filter from a LED. The image display apparatus can respectively control luminous efficiencies of plural color LEDs, i.e., R-LED (07-14-2011
20100123696IMAGE DISPLAY APPARATUS AND METHOD - With regard to an image to be displayed on a display unit, a calculation unit calculates a display luminance from the input image. A luminance distribution acquisition unit takes a scene image including the display unit from a view position of the display unit, and acquires a luminance distribution as an average of luminances of the scene image. A correction unit corrects the display luminance, so that a corrected display luminance is within an estimated luminance range of perceptible difference of luminances on the display unit. The estimated luminance range is estimated with the average. The display unit displays the image based on the corrected display luminance.05-20-2010
20100182294SOLID STATE ILLUMINATION SYSTEM - An illumination system comprises at least two light sources (07-22-2010
20090309858LIQUID CRYSTAL DISPLAY AND DRIVING METHOD OF THE SAME - A liquid crystal display (“LCD”) and a driving method of the same are provided. The LCD includes a photo sensor including a ring oscillator having cascade-connected inverters, wherein the output signal of the ring oscillator has a frequency varying according to the ambient luminance.12-17-2009
20120293474SYSTEMS AND METHODS FOR FACILITATING LIFT-OFF PROCESSES - Systems and methods for facilitating lift-off processes are provided. In one embodiment, a method for pattering a thin film on a substrate comprises: depositing a first sacrificial layer of photoresist material onto a substrate such that one or more regions of the substrate are exposed through the first sacrificial layer; depositing a protective layer over at least part of the first sacrificial layer; partially removing the first sacrificial layer to form at least one gap between the protective layer and the substrate; depositing an optical coating over the protective layer and the one or more regions of the substrate exposed through the first sacrificial layer, wherein the optical coating deposited over the protective layer is separated by the at least one gap from the optical coating deposited over the regions of the substrate exposed through the first sacrificial layer; and removing the first sacrificial layer.11-22-2012
20100118008COLOR PROCESSING APPARATUS, COLOR PROCESSING METHOD, AND STORAGE MEDIUM - A color processing apparatus that creates a lookup table for performing a conversion process corresponding to ambient light comprises: an obtainment unit configured to obtain the illuminance of the ambient light and the device luminance of a destination device; a creation unit configured to create an adaptive luminance function from the illuminance of the ambient light and the device luminance; a setting unit configured to set an adaptive white luminance from a luminance value of grid point color data corresponding to a grid point in the lookup table, using the adaptive luminance function; a conversion unit configured to perform a conversion process on the grid point color data in accordance with a color appearance model, using the adaptive white luminance; and a saving unit configured to save the converted color data in the lookup table.05-13-2010
20100085338IMAGE DISPLAY DEVICE - An image display device of the present invention adopts a field sequential method whereby image display is performed by sequentially lighting light emitting devices in a backlight portion for each field. The image display device includes: a brightness sensor that is arranged so as to face the backlight portion with a display panel sandwiched in between and detects the brightness of light emitted from the backlight unit and transmitted through the display panel for each of light emitting colors; or a brightness sensor that detects the brightness of the light from the backlight portion for each of the emission colors and detects, by a common light receiving section, the brightness irrespective of the emission colors. The brightness of the light of the backlight portion is controlled according to the detected brightness value for each of the emission colors. This enables constant white balance adjustment to be achieved while realizing accurate detection of brightness required for the white balance adjustment.04-08-2010
20090207157PHOTOSENSOR FOR DISPLAY DEVICE - A photosensor for a display device includes a light receiver, a reset unit, and a sample unit. The light receiver is used for receiving ambient light to generate a photovoltage. The light receiver includes a first transistor and a first conversion unit that transforms the output of the first transistor into the photovoltage. The reset unit is used for providing an initiated reference voltage in response to a reset signal and includes a second transistor and a third transistor that are connected with each other, where the first conversion unit is discharged through the third transistor to obtain the initiated reference voltage when the second transistor is turned on. The sample unit is used for outputting the photovoltage in respond to a sample signal, the sample unit comprising a fourth transistor in respond to the sample signal and a second conversion unit that transforms the output of the fourth transistor into the photovoltage.08-20-2009
20090160834DISPLAY SCREEN AND SENSOR MODULE THEREOF - A display screen with a display area includes a frame and a sensor module. The frame surrounds the display area. The sensor module is mounted on the frame and includes a mount disposed on the frame and a slidable assembly slidably disposed on the mount and including an ambient light sensor and a screen light sensor, wherein the ambient light sensor and the screen light sensor are disposed on two opposite sides of the slidable assembly respectively. When a side of the slidable assembly on which the screen light sensor is disposed faces the display area, the screen light sensor detects brightness of the display area. When the side of the slidable assembly does not face the display area, the ambient light sensor detects brightness of an ambiance.06-25-2009
20080303806Automatic Illuminance Compensation in Displays - A sensor for continuously measuring the illuminance of ambient light (12-11-2008
20090295769ADHESION TYPE AREA SENSOR AND DISPLAY DEVICE HAVING ADHESION TYPE AREA SENSOR - A lightweight, thin, small size semiconductor device is provided. A pixel has a display portion, and a light receiving portion comprising a photodiode. A transistor is used with the semiconductor device for controlling the operation of the display portion and the-light receiving portion.12-03-2009
20090284507AMBIENT LIGHT DETECTION DEVICE - An ambient light detection device for use with a liquid crystal display having an array of liquid crystal cells, each liquid cell having at least one transistor for selectively connecting that liquid crystal cell to a signal line and each transistor having a gate connected to a gate line and having a gate supply line selectively connectable to the gate line for turning off the gates. The device includes a current measuring circuit configured to measure the current flowing in the gate supply line as a result of gate leakage current in the gates to which the gate supply line is connected and a controller connected to the measuring circuit and configured to calculate, from the measured current, the level of ambient light reaching the gates.11-19-2009
20090284506IMAGE DISPLAY DEVICE DISPLAYING IMAGE BY APPLYING LASER LIGHT - A scanning position of laser light applied to a projection plane is detected, and based on the detected scanning position, a synchronization signal is generated to designate a scan timing. A correction region detection portion detects whether or not a part corresponding to a prescribe region of an image on the projection plane is scanned by laser light, based on the generated synchronization signal. When the part corresponding to the prescribed region is scanned, a correction amount derivation portion corrects a gradation signal based on the difference between the detected quantity of laser light and a prescribed quantity of light to be output from the laser for displaying the image in the prescribed region.11-19-2009
20100277451DISPLAY DEVICE, PARTICULARLY DISPLAY DEVICE FOR MOTOR VEHICLES, WITH A BRIGHTNESS SENSOR - A display is disclosed, such as for a vehicle. A brightness sensor receives light from a flexible fiber-optic cable. An adapter element is provided proximate, such as between, the light output point of the optical fiber and the brightness sensor. The adapter element may be an angled piece, and may be extruded onto the optical cable.11-04-2010
20110169794PHOTODETECTOR, PHOTODETECTOR ARRAY AND DISPLAY DEVICE WITH PHOTODETECTION - According to one embodiment, a photodetector includes a substrate, a first semiconductor region, a second semiconductor region, a third semiconductor region, an insulating film, a first electrode, a second electrode, and a shield film. The first semiconductor region is provided on a major surface of the substrate. The second semiconductor region and the third semiconductor region are provided in a substantially identical plane to the first semiconductor region. The second semiconductor region is contacted with the first semiconductor region and has an impurity concentration higher than the first semiconductor region. The third semiconductor region is contacted with the second semiconductor region. The shield film is provided on the insulating film and electrically connected to the first electrode. A periphery of the shield film is disposed to cover an interface between the second semiconductor region and the third semiconductor region in a planar view.07-14-2011
20100201664PHOTOSENSOR, PHOTOSENSOR APPARATUS INCLUDING THE PHOTOSENSOR, AND DISPLAY APPARATUS INCLUDING THE PHOTOSENSOR APPARATUS - Provided are a photosensor, a photosensor apparatus including the photosensor, and a display apparatus including the photosensor apparatus. The photosensor includes a substrate; a first light receiving layer which is formed on the substrate and comprises an oxide; a second light receiving layer which is connected to the first light receiving layer and comprises an organic material; and first and second electrodes which are respectively connected to the first and second light receiving layers.08-12-2010
20100201663METHOD OF DRIVING A DISPLAY PANEL AND DISPLAY APPARATUS FOR PERFORMING THE SAME - A method of driving a display panel includes; sensing an illumination of a surrounding area which surrounds the display panel, and selectively displaying a black line image on the display panel in accordance with the illumination of the surrounding area.08-12-2010
20110199350AMBIENT LIGHT-COMPENSATED REFLECTIVE DISPLAY DEVICES AND METHODS RELATED THERETO - Various embodiments include devices, methods, data structures, and software that allow a reflective display device to, among other things, determine color components of a first image, detect an ambient light color composition, and weight one or more of the color components of the first image to provide a compensated image for display on the reflective display device. In one embodiment, the weighting compensates for a difference between the detected ambient light color composition and a specified color balance.08-18-2011
20110199351SEMICONDUCTOR DEVICE AND DISPLAY DEVICE INCLUDING THE SAME - A semiconductor circuit including: an A/D converter circuit which converts an inputted first signal into a second signal. The A/D converter circuit includes a comparator circuit which compares a voltage of the first signal and a reference voltage; an A/D conversion controller circuit which outputs a digital signal in accordance with comparison results given by the comparator circuit, as a fourth signal and which outputs, in accordance with the third signal, a digital signal corresponding to the first signal, as the second signal; and a D/A converter which converts an inputted fourth signal into an analog signal and which outputs the analog signal as the reference signal. The comparator circuit includes a transistor having a first gate and a second gate. The first signal is inputted to the first gate, the reference signal is inputted to the second gate.08-18-2011
20110199349OPTICAL SENSOR AND DISPLAY DEVICE PROVIDED WITH THE SAME - The present invention provides an optical sensor at least some part of which is formed monolithically in an active matrix substrate of a display device. In order to detect ambient light with high accuracy by eliminating the influences of stray light and of property variations between photodetecting elements, the optical sensor includes a detection photodiode (08-18-2011
20100103151DISPLAY DEVICE AND DISPLAY METHOD - The present invention includes a display device for displaying an image and receiving light simultaneously or alternately. The display device includes: a plurality of display elements for displaying the image on a display surface of the display device by emitting light; a plurality of light receiving elements for receiving light incident on the display surface formed by the display elements; a storing unit for storing, as an initial value, a difference between two amounts of light received by the light receiving elements; and a detecting unit for detecting a state of contact with or proximity to the display surface and subtracting the initial value stored by the storing unit from a difference between the two detected amounts of received light.04-29-2010
20110267324APPARATUS AND METHOD FOR AMBIENT LIGHT DETECTION AND POWER CONTROL VIA PHOTOVOLTAICS - A method and apparatus for ambient light detection and power control using photovoltaics is disclosed. In an embodiment, a device includes a display and a photovoltaic cell. The photovoltaic cell acts as both an ambient light sensor and a power source. Based on the detected ambient light level, the brightness of the display is increased or decreased to save power, and energy captured by the photovoltaic cell is converted into a useable power signal which is stored or used by device components.11-03-2011
20120293472Ambient Light Sensor Configured to Determine the Direction of a Beam of Ambient Light Incident Thereon - Various embodiments of an ambient light sensor configured to determine the direction of a beam of light incident thereon are disclosed. In one embodiment, an ambient light sensor is provided that comprises a plurality of light detectors arranged in a spatial array upon a light sensing surface. Each of the light detectors in the array is configured to generate an analog output voltage in response to the beam of ambient light falling thereon. The amount of light incident on the individual light detectors in the spatial array varies according to the position of each such sensor with respect to direction of the beam of ambient light. An analog-to-digital converter (ADC) is operably coupled to the plurality of light detectors and is configured to receive the analog output signals generated thereby as inputs thereto, and to provide digital output values representative of the analog signals. Control logic circuitry is operably coupled to the ADC and configured to receive the digital output values therefrom, and is further configured to process such digital output values to determine the direction of the beam of light incident upon the spatial array.11-22-2012
20130021308ELECTRONIC DEVICE AND METHOD FOR ADJUSTING BACKLIGHT BRIGHTNESS - A device and a method for adjusting backlight brightness employed in a display are provided. The electronic device includes a display unit, a backlight unit, a light sensor, a distance sensor, and a control unit. The backlight unit is configured to emit backlight for the display unit. The light sensor is configured to sense ambient brightness of the electronic device in real time. The distance sensor is configured to sense an object within a predetermined coverage area in real time. The control unit is configured to detect whether the ambient brightness changes, evaluate whether the object is sensed by the distance sensor within the predetermined coverage area when detecting that the ambient brightness is low, and not control the backlight unit to adjust the backlight brightness of the display unit when the object is sensed within the predetermined coverage area.01-24-2013
20090033646DISPLAY WITH A LUMINANCE AND COLOR TEMPERATURE CONTROL SYSTEM AND METHOD FOR CONTROLLING THE LUMINANCE OF A DISPLAY - A display includes a display module, a light source, a light source driving circuit, a display driving circuit, and an optical sensor. The optical sensor is installed next to the light source for detecting the luminance and color temperature of the light source. The optical sensor is coupled to the display driving circuit for generating a feedback signal to the display driving circuit according to the luminance and the color temperature of the light source. The display driving circuit drives the display module to display an image according to a received image signal and updates the data of the image signal according to the feedback signal so as to adjust the luminance and the color temperature of the image.02-05-2009
20100128010LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME - A liquid crystal display device (05-27-2010
20080303807DETERMINING APPARATUS AND METHOD FOR CONTROLLING THE SAME - There is provided a method for controlling a determining apparatus including: a first pixel for displaying a first image; a second pixel for displaying a second image; a light shielding member that allows the first image to be viewed from a first direction and blocks the first image from a second direction, and allows the second image to be viewed from the second direction and blocks the second image from the first direction; a first sensor provided for the first pixel and detecting the quantity of light coming from the first direction; and a second sensor provided for the second pixel and detecting the quantity of light coming from the second direction. The method includes: storing at least one frame of the results of detection of the first and second sensors; and after obtaining the present results of detection of the first and second sensors, determining whether an object approaches from the first direction or the second direction from the result of comparison between the stored detection results of one frame and the results of detection of present one frame.12-11-2008
20120293473DISPLAY APPARATUS AND IMAGE COMPENSATING METHOD THEREOF - A display apparatus is disclosed. The display apparatus includes an environment luminance detector, a display image data analyser, and an image compensation processor. The environment luminance detector detects an environment luminance and generates an environment luminance grade according to the environment luminance. The display image data analyser receives display image data and analyses a luminance of the display image data to generate a display image data luminance grade. The image compensation processor generates an image luminance enhancement value, an image color compensating value and an image edge enhancement value. The image compensation processor compensates the display image data to generate compensated image data according to the image luminance enhancement value, the image color compensating value and the image edge enhancement value.11-22-2012
20120032933ELECTRONIC DEVICE HAVING SOLAR ENERGY MODULE - An electronic device includes a display and a housing configured to house the display. A solar energy module is arranged in the housing, and configured for converting light into electricity. A light guide member includes an optical film with a micro-structure, which guides light incident on the light guide member to be split at a preset angle. The light guide member is arranged on and covers the display, and is configured for guiding incident light to the solar energy module.02-09-2012
20110205201MICROENCAPSULATED ELECTROPHORETIC PRICE DISPLAY SYSTEM - An electronic product price display system for installation in a retail environment for displaying price and related information concerning retail consumer products price including at least one microencapsulated electrophoretic display label for displaying information about consumer products; a power system for powering the display labels, where the power system includes a photovoltaic cell coupled with a means for storing the power generated by the photovoltaic cell; an antenna for receiving RF signals and transmitting them to a microcontroller; a microcontroller for receiving RF communication signals and for converting the received signals into instructions to change the display labels; a programmable computer module for generating instructions for the labels; means for receiving said instructions from said computer and generating RF instruction signals; and means for removably affixing said labels to store shelving holding the consumer products.08-25-2011
20100141624ADAPTIVE METHOD FOR ACQUIRING COLOR MEASUREMENTS - A system and method for measuring a color parameter values of a display for calibration purposes. An initial measurement of the color parameter value from the display is performed. Next, a number of additional measurements is determined in response to the value of the initial color parameter value. The color parameter value of the display is measured by the number of additional measurements in order to determine an average color parameter value of the display which will be used for calibration purposes.06-10-2010
20100141623DISPLAY DEVICE, DISPLAY CONTROL METHOD, AND ELECTRONIC APPARATUS - A display device is provided and includes a first photosensor that detects the light amount of ambient light of a display area, a second photosensor that detects dark current arising when light is blocked, and changeover switches that select the first photosensor and the second photosensor. The display device further includes a comparator that compares the output of the selected first photosensor or second photosensor with a predetermined reference value, and control means that calculates the difference between the comparison result by the comparator with the first photosensor and the comparison result by the comparator with the second photosensor and controls the amount of light supplied to the display area corresponding to the calculation result. This configuration suppresses the influence of a detection error due to variation in the performance between the photosensors applied to the display device to thereby accurately adjust the amount of light supplied to the display area.06-10-2010
20110007048SYSTEM AND METHOD FOR USING PIXELS OF A DISPLAY DEVICE TO COMMUNICATE OPTICAL INFORMATION OVER A COMMUNICATIONS LINK - A system for communicating over an optical communications link is provided that uses at least one display pixel of a display device to transmit optical information bits and at least one sensor pixel of the display device to receive optical information bits. To transmit optical information bits, a controller of the display device causes the transmitter display pixel to switch between at least first and second optical display conditions to produce a modulated optical signal representative of one or more information bits. To receive optical information bits, the controller reads the electrical sense signal produced by the receiver sensor pixel and interprets the electrical sense signal read from the receiver pixel as corresponding to one or more information bits.01-13-2011
20110007047DISPLAY DEVICE HAVING OPTICAL SENSORS - A liquid crystal panel with built-in sensors 01-13-2011
20110007046SMART DISPLAY DEVICES - Smart display devices are presented. The smart display device includes an electrowetting panel, a photo-detector device, and a panel driving control device, wherein the photo-detector device detects environmental light such that the electrowetting panel is driven by the panel driving control device accordingly. The electrowetting panel has an array of pixels, wherein each pixel includes a first substrate and an opposing second substrate with a polar fluid layer and a non-polar fluid layer interposed between the first and second substrates. A first electrode is disposed on the first substrate. A second electrode is disposed on the second substrate. A hydrophilic bank structure is disposed between the first and the second substrates.01-13-2011
20130120330SYSTEM AND METHOD FOR OPTIMIZING VISIBILITY, AND MOBILE DEVICE OPERATING WITH OPTIMIZED VISIBILITY - A visibility optimization system and method is provided. The visibility optimizing system includes a display mobile device; and a measurement device. The display mobile device displays an image and adjusts a brightness level of the displayed image according to a control from the measurement device. The measurement device photographs the displayed image, compares the photographed image with reference data, and creates a visibility table based on a comparison result of the photographed image with the reference data.05-16-2013
20130120331DISPLAY DEVICE - A sensor pixel circuit (05-16-2013
20090179882Light modulator, projection display apparatus and image projection method - A first linearly polarized bundle of rays of incident rays is converted by optical modulation with an input video signal into a second linearly polarized bundle of rays orthogonal to the first rays in polarization. The first rays pass through a polarizer before optically modulated. A second linearly polarized bundle of rays originally involved in the incident rays is reflected by the polarizer in a first direction. The second rays obtained by the optical modulation are reflected by the polarizer in a second direction. The second rays reflected in the second direction pass through another polarizer. A first linearly polarized bundle of rays involved in the reflected second rays is reflected by the other polarizer. The reflected first rays is detected by an optical sensor that is positioned outside an optical path of the second rays originally involved in the incident rays and reflected in the first direction.07-16-2009
20090128529Display Device and Electronic Device - A display apparatus including an optical sensor in its peripheral region is intended to response to visible rays efficiently by preventing a malfunction due to the reaction of the optical sensor to near ultraviolet rays. For this purpose, a display apparatus that includes an active matrix substrate (05-21-2009
20110205202ORGANIC ELECTROLUMINESCENT DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A method and system for controlling power consumption of a display is disclosed. The method includes determining battery voltage, brightness of ambient light, temperature, and adjusting the brightness of the organic electroluminescent display apparatus, or by adjusting the voltage difference between a first power voltage and a second power voltage of the organic electroluminescent display apparatus, according to the battery voltage, the brightness of the ambient light, the temperature, and image data of the organic electroluminescent display apparatus.08-25-2011
20120068980STORAGE MEDIUM HAVING STORED THEREON DISPLAY CONTROL PROGRAM, DISPLAY CONTROL APPARATUS, DISPLAY CONTROL SYSTEM, AND DISPLAY CONTROL METHOD - Captured image acquisition means acquires a captured image captured by a real camera. Color detection means, in the captured image acquired by the captured image acquisition means, detects at least one pixel having specific range color information in color information including at least one selected from the group including RGB values, a hue, a saturation, and a brightness. Image generation means, on the basis of the specific range color information of the at least one pixel detected by the color detection means, generates an image of an object to be placed in a virtual world. Image display control means displays the image generated by the image generation means on a display device.03-22-2012
20120068979E-book and power controller and power controlling method thereof - An e-book under an external light having an intensity is provided. The e-book includes a memory module storing data; an input/output interface electrically connected to the memory module, inputting the data to the memory module, and outputting the data from the memory module; an e-paper module electrically connected to the memory module, and displaying the data; a power device electrically connected to the e-paper module and the memory module, and providing a power output; and a photosensor electrically connected to the power device, having a threshold value, and sensing the intensity of the external light, wherein when the sensed intensity is lower than the threshold value, the power device reduces the power output.03-22-2012
20120068978BACKLIGHT SYSTEM FOR A DISPLAY - A method and system for modifying a pulse width modulation signal for controlling the backlit illumination intensity of a liquid crystal display. The modified pulse width modulated signal may be selected to operate with at least one pulse having a first duty cycle with the remaining pulses in the pulse width modulation signal having a second duty cycle across a selected number of pulses making up a given time period (i.e., frame). By utilizing more than one duty cycle for the pulses of the pulse width modulated signal to drive light sources in a display during a given frame, the overall number of backlit illumination intensities for the liquid crystal display may be increased. By distributing the differing pulse duty cycles within a group of pulses of within a frame, visible artifacts may be reduced.03-22-2012
20110221724METHOD FOR DRIVING INPUT CIRCUIT AND METHOD FOR DRIVING DISPLAY DEVICE - To reduce power consumption. Included are a selection signal output circuit, a reset signal output circuit, and a plurality of photodetector circuits. After the selection signal output circuit outputs part of the selection signals, output of the other selection signals from the selection signal output circuit is stopped. After the reset signal output circuit outputs part of the reset signals, output of the other reset signals from the reset signal output circuit is stopped.09-15-2011
20090073150Liquid crystal display panel with image sensing system and image processing system using same - A liquid crystal display panel (03-19-2009
20090167738IMAGING DEVICE AND METHOD - An imaging device capable of sensing overall luminous intensity and determining whether to turn off an illumination device. The imaging device can capture a moving picture, and includes a light emitting unit for emitting light on a subject, a light measuring unit for detecting the brightness level of the subject, and a light emitting intensity controller for controlling the light emitting intensity from the light emitting unit. The light emitting intensity controller controls the light emitting unit to emit light having different intensities on the subject for a period of time corresponding to at least one frame, and reduces the light emitting intensity of the light emitting unit or adjusts the light emitting intensity to a value of ‘0’ based on the brightness level of the subject on which the light having different intensities is emitted.07-02-2009
20110141079IMAGE DISPLAY APPARATUS, CONTROL METHOD THEREOF, AND COMPUTER-READABLE STORAGE MEDIUM - A distribution of light amount sensor that measures a distribution of light amount during a display is installed in a boundary area of a front surface panel of a display screen. A display problem region detection unit detects a display problem region in the display screen based on an imbalance in the center location of the distribution of light amount obtained when a uniform image is displayed in the entirety of the display screen. Then, a correction unit corrects an image signal that is to be displayed in the display screen so as to suppress the influence of the display problem region on the display.06-16-2011
20110141077DRIVING METHOD FOR LOCAL DIMMING OF LIQUID CRYSTAL DISPLAY DEVICE AND APPARATUS USING THE SAME - A driving method for local dimming of a Liquid Crystal Display (LCD) device and an apparatus using the same are disclosed. The driving method includes measuring light intensities at a plurality of sampling points by driving a light source of a backlight unit and storing the light intensity measurements as light intensity data of the sampling points in a memory, determining a local dimming value of each block by analyzing input image data on a block basis, detecting a pixel position of current input data, selecting a plurality of sampling points adjacent to the current pixel and the light intensity data of the sampling points from the memory, detecting light intensity data of the current pixel by linearly interpolating the light intensity data of the sampling points individually, calculating a gain value by a light intensity analysis based on the light intensity data of the current pixel and the local dimming value of each block, compensating the current input data using the gain value, and controlling luminance of the backlight unit on a block basis using the local dimming value of each block.06-16-2011
20090184947Color calibration system and method - A color calibration system comprises an electronic device having a display screen, a color sensing device disposed on the electronic device, and a calibration module disposed in the electronic device to perform a color calibration process for the display screen based on a color value detected by the color sensing device.07-23-2009
20090231313Display Apparatus and Electronic Apparatus - A display apparatus is provided which includes a display element section (09-17-2009
20090179880Display device and luminance control method therefor - Disclosed herein is a display device having an insulating substrate, an effective pixel area formed on the insulating substrate and having at least pixels arranged in the form of a matrix, and a peripheral circuit formed on the insulating substrate so as to surround the effective pixel area, the pixels being driven by the peripheral circuit to display a desired image in the effective pixel area, the display device including an extraneous light sensor provided in the effective pixel area for detecting extraneous light to output an extraneous light quantity detection result for use in controlling the luminance of the image.07-16-2009
20090251448IMAGE DISPLAY AND IMAGE DISPLAYING METHOD - A projector 10-08-2009
20120194493Apparatus and Method for Using an LED for Backlighting and Ambient Light Sensing - Embodiments of a backlight module for illuminating a liquid crystal display (LCD) and sensing ambient light are provided herein. The backlight module includes a light-emitting diode (LED) array and a backlight controller. The backlight controller is configured to forward bias the LED array to backlight the LCD and reverse bias the LED array to sense the ambient light level. The backlight controller is configured to adjust the brightness of the LED array based on the current ambient lighting conditions sensed.08-02-2012
20120105403OPTICAL SENSE-CONTROL SYSTEM - An optical sense-control system, for receiving a first and second lights, includes: a first and a second optical filters, wherein the transmission of the first light having a majority intensity in a first wave-length band is greater than the that of the second light having a majority intensity in a second wave-length band in the first optical filter, the first wave-length band is less than the second wave-length band, and the transmission of the second light is greater than the that of the first light in the second optical filter; and a optical detection module, arranged in a side of the first and the second optical filters, for creating a first control signal while detecting the first light emitting through the first optical filter at a first zone and creating a second control signal while detecting the second light emitting through the second optical filter at a second zone.05-03-2012
20120105402METHOD AND SYSTEM FOR ADJUSTING LIGHT OUTPUT FROM A LIGHT SOURCE - A light adjusting system, system including a light guide adapted to collect light from a light source. A calibration value for the light source is stored in a memory. A light detector is coupled with the light guide. S controller is electrically connected to an output of the light detector and detachably connected to a driver for driving the light source. The controller is adapted to control the driver responsive to the output of the light detector.05-03-2012
20120105401ELECTRONIC DEVICE - An electronic device including a display unit and a photoelectric conversion board is provided. The display unit includes a display surface and a back surface which are opposite to each other, and an edge of the photoelectric conversion board is rotatably connected to the back surface of the display unit. The photoelectric conversion board includes a substrate, a first photoelectric conversion unit, and a second photoelectric conversion unit. The substrate has a first surface and a second surface which are opposite to each other, the first photoelectric conversion unit is disposed on the first surface, the second photoelectric conversion unit is disposed on the second surface, and an absorption band of the first photoelectric conversion unit is different from an absorption band of the second photoelectric conversion unit.05-03-2012
20120105400CAMERA LENS STRUCTURES AND DISPLAY STRUCTURES FOR ELECTRONIC DEVICES - A camera may be mounted under a display in an electronic device. The display may include a polarizer layer, a color filter layer, and a thin-film-transistor layer. A layer of material such as a glass insert may be attached to an edge of the display. Openings may be formed in the layers of the display and the insert to accommodate the camera. A sleeve structure may be mounted within an opening. The camera may include lens structures formed from a stack of lens elements. One or more layers of the display may be interposed within the lens structures. The glass insert may be mounted within a notch in the color filter layer and thin-film transistor layer or along a straight edge of the color filter layer and thin-film transistor layer. The edge of the color filter layer may be recessed with respect to form a mounting shelf for the insert.05-03-2012
20100177076Edge-lit electronic-ink display device for use in indoor and outdoor environments - A wireless electronic-ink based display device for use in indoor and outdoor environments characterized by low and/or dynamic ambient lighting conditions. The wireless electronic-ink based display device has an ambient light level sensor for sensing ambient lighting conditions about the wireless electronic-ink based display device, and generating a drive control signal in response to sensed ambient lighting conditions. The wireless electronic-ink based display device also has an edge-lit LED-based illumination module, responsive to the drive control signal generated by the ambient light level sensor, for illuminating the display surface of its addressable electronic-ink display module during low-illumination ambient lighting conditions detected by the ambient light level sensor, under the control of a processor. In the illustrative embodiment, the processor runs a firmware routine which analyzes detected ambient light conditions made by the ambient light level sensor, and automatically generates the drive control signal provided to the edge-lit LED illumination module.07-15-2010
20100156864DRIVING DEVICE FOR DISPLAY AND DISPLAY USING THE SAME AND DRIVING METHOD OF THE DISPLAY - A driving device for a display and a display using same, and a driving method of the display are provided. The display includes a display panel on which an image is displayed, and at least one optical sensor (photodetector) to detect the intensity of ambient (external) light incident upon the display panel. An external-brightness detector outputs an external-brightness signal based on the intensity of external (ambient) light and a backlight brightness controller changes the brightness of the image displayed (or backlight) on the display panel according to the external-brightness signal. The driving device may be implemented on an integrated circuit adapted to be connected to external-light photodetectors of type 1 or of type 2. The driving device may be may be dynamically configured to generate the external-brightness signal by sensing a voltage level of the light detecting node in a first mode of operation and may be reconfigured to generate the external-brightness signal by sensing a current level of the light detecting node in a second mode.06-24-2010
20100149145DISPLAY PANEL - The reflective display panel (06-17-2010
20100177078Dual-Function Light Guide for LCD Backlight - A light emitter/sensor includes a lamp, a light sensor, a light guide, and a light controller. The light guide has a pair of opposite ends and is optically-coupled to the lamp and the light sensor at one of the ends. The light guide is configured to convey light emitted from the lamp to the other end of the light guide, and from that other end to the light sensor. The light controller is coupled to the lamp and the light sensor and is configured to flash the lamp and to determine the intensity of light at that other end of the light guide, via the light guide and the light sensor, during an interval between the flashes.07-15-2010
20100156863Closed Loop Laser Control - The radiance of a laser is a function of drive current. The radiance is also a function of other factors, such as age and temperature. A laser projection device adjusts laser drive parameters using a gradient descent operation. The device parameters may be adjusted iteratively and periodically. The period may be shorter or longer than a scan line in a video image.06-24-2010
20100259521DRIVING DEVICE AND DRIVING METHOD OF PLASMA DISPLAY PANEL AND PLASMA DISPLAY APPARATUS - A two-phase driving operation is performed by a first circuit and a second circuit in at least one sub-field. The first circuit applies a first ramp waveform that drops from a first potential to a second potential to a plurality of first scan electrodes in a setup period, and sequentially applies a scan pulse to the plurality of first scan electrodes in a write period. The second circuit applies a second ramp waveform that drops from the first potential to a third potential that is higher than the second potential to a plurality of second scan electrodes, and then raises the plurality of second scan electrodes to a fourth potential in the setup period, and holds the plurality of second scan electrodes at a fifth potential that is higher than the third potential and lower than the fourth potential in a period where the first scan pulse is applied, and then sequentially applies a scan pulse to the plurality of second electrodes in the write period. Discharge failures during write discharges can be prevented from occurring by employing the two-phase driving operation.10-14-2010
20090115757Low-power image display device and method - Provided is a low-power image display device including a brightness determining unit that determines the brightness of image data applied from outside; a histogram analyzing unit that is connected to the brightness determining unit, calculates a cumulative distribution function (CDF) of the determined image data, and selects the brightness of the image data, corresponding to the number of pixels preset in the calculated CDF, as reference brightness; a brightness control unit that is connected to the brightness determining unit and the histogram analyzing unit and converts the image data such that the contrast of the image data is converted into contrast corresponding to the reference brightness; a data drive that is connected to the brightness control unit, receives the image data of which the contrast is changed, and converts the image data into an image output signal for displaying an image to the outside; a backlight control unit that is connected to the histogram analyzing unit and the data drive and generates a driving voltage for controlling the brightness of backlight to brightness corresponding to the reference brightness; and an image display unit that is connected to the data drive and the backlight control unit, receives the driving voltage generated from the backlight control unit and the image output signal, and displays an image by using the image data, of which the contrast is changed, and the backlight of which the brightness is changed.05-07-2009
20090115756Matrix phosphor cold cathode display employing ion activated phosphors - A vacuum flat panel display has a plurality of associated pixels each having a phosphor and nanotubes and a surrounding control frame. When a pixel voltage is negative relative to the frame then a plurality of electrons emitted by the nanotubes are attracted to the frame whereby electrons strike gas atoms in transit to the frame and produce ions and additional electrons; wherein said ions returning to the pixel result in phosphor illumination. The invention is also a process for illuminating a phosphor in a flat panel display comprising: a plurality of associated pixels each having a phosphor and nanotubes; applying a pixel voltage negative relative to a frame; attracting to the frame a plurality of electrons emitted by the nanotubes; whereby electrons strike atoms of a gas in transit to the frame producing ions resulting in phosphor illumination.05-07-2009
20090079721Dynamic brightness range for portable computer displays based on ambient conditions - A portable computer system that comprises dynamically adjustable brightness range settings and brightness control for providing improved user readability and prolonged component lifetime of the display screen. The main processor can change the range settings based on ambient light conditions or the user can perform the changes. The brightness level of the display changes according to a user selected setting within the range selected. The time required to implement the brightness change can be set to a value which can be configured by the user.03-26-2009
20110175872DISPLAY DEVICE FOR CONVERTING BETWEEN BRIGHT AND DARK STATES AND METHOD THEREOF - The configurations and controlling methods of a display device are provided in the present invention. The proposed display device having an environmental brightness, a display content and a display background with a display brightness includes a light sensor sensing the environmental brightness and adjusting the display brightness according to the environmental brightness such that a reader could read the display content easily.07-21-2011
20130215093Power-Optimized Image Improvement In Transflective Displays - The specification and drawings present a new method, apparatus and software related product (e.g., a computer readable memory) for improving quality (e.g., eliminating parallax and/or increasing contrast) of an observed image in displays (e.g., transflective displays) in a reflective mode by creating at least one complimentary image based on measurements of ambient light luminance and/or diffusivity as well as minimizing the power necessary to achieve readability in low ambient light. In one embodiment the parallax (shadow) image may be inverted and displayed on the emissive display to cancel the parallax image. In another embodiment an improvement of readability (e.g., thus improving contrast) of a positive polarity text/graphic image on the LCD may be accomplished by using an inverted blurred version of the same image multiplied with the original image.08-22-2013
20100177075ELECTROLUMINESCENT DISPLAY DEVICES - An active matrix LED display device uses optical feedback for controlling the pixel drive transistors (07-15-2010
20100149146Display - A display includes: a panel in which a plurality of pixels emitting light in response to a video signal are arranged; a light-receiving sensor outputting a light-reception signal in accordance with the light-emission of each pixel; calculation means for calculating correction data on the basis of the light-receiving signal; and drive control means for correcting the video signal on the basis of the correction data, wherein the light-receiving sensor is adhered to an outermost substrate constituting the panel by using a material with a refractive index which is equal to or smaller than that of the substrate.06-17-2010
20100289783SENSOR FOR MEASURING LIGHT INTENSITY AND THE PROCESS OF CALIBRATING A MONITOR - The invention is directed to a sensor for measuring light intensity. In one embodiment, the sensor includes a light sensor and an assembling device for attaching and allowing the dismantling of the sensor to a monitor wherein the sensor measures the light intensity generated by the monitor's screen. In another embodiment, the sensor may include an assembling device that connects to a monitor through mould-based connection or magnetic connection. In various embodiments the sensor may also include a linking device and an electronic control device wherein the linking device transmits the measurement data of light intensity to the electronic control device and has an operating radius that is large enough as to allow the positioning of the sensor on any part of the monitor's screen.11-18-2010
20100238150DISPLAY AND ELECTRONIC APPARATUS EQUIPPED WITH SAME - A display capable of performing ambient light detection with a high accuracy is provided. The display device is a display device having a backlight and a photo sensor for detecting ambient light and outputting a photocurrent according to an intensity of the ambient light, and further including a light-shielding member disposed below the photo-sensor for shielding light from the backlight; and a pseudo photo sensor disposed above the light-shielding member around the photo sensor. The pseudo photo sensor is made of the same material as the photo sensor, and formed in the same process as the photo sensor.09-23-2010
20110102393DISPLAY DEVICE - A display device includes a photosensor in a pixel region of an active matrix substrate. The photosensor includes a photodiode (D05-05-2011
20100253661DISPLAY DEVICE AND ELECTRONIC APPARATUS EQUIPPED WITH THE SAME - A display device includes a display panel. The display panel has a visible-light transmissible polarizer at a side of receiving an external light, and includes a first optical sensor, a second optical sensor and a sensor output computing part. The first optical sensor is disposed on a substrate of the display panel and unsheltered by the polarizer for detecting the external light. The first optical sensor outputs a first signal in response to a detected wavelength component of the external light. The second optical sensor is disposed on the substrate of the display panel and sheltered by the polarizer for detecting a visible light passing through the polarizer. The second optical sensor outputs a second signal in response to a detected wavelength component of the visible light. According to the first signal and the second signal, the sensor output computing part computes a UV light intensity of the external light.10-07-2010
20100164922Backlight brightness control for panel display device - A display device is provided with a display panel; a backlight which illuminates the display panel; and a backlight brightness controller controlling a brightness of the backlight so that the brightness of the brightness is variable in the middle of each frame period.07-01-2010
20100039414Automatic brightness control for displays - An automatic brightness adjustment for devices with displays includes the capability to assess ambient light. The assessment may be made using circuitry, such as a light meter circuit, by exploiting exposure control circuitry, or using other approaches. The ambient light value is sent to a brightness adjustment driver, which may employ a look-up table to keep track of brightness adjustments for particular ambient conditions. The look-up table may include distinct adjustment values based upon the type of display.02-18-2010
20110234558COLOR IMAGING USING COLOR LED ARRAY AS COLOR LIGHT-FIELD IMAGE SENSOR - A color light field sensor employing at least three inorganic LEDs, OLEDs, or related devices of differing emission colors to create respectively associated light amplitude measurement signals. The light amplitude measurement signals are used to produce a first output signal by subtracting a function of the light amplitude measurement signal associated with the mid-value wavelength LED from a function of the light amplitude measurement signal associated with lowest-value wavelength LED, produce a second output signal by subtracting a function of light amplitude measurement signal associated with highest-value wavelength LED from function of light amplitude measurement signal associated with mid-value wavelength LED, and produce a third output by taking function of light amplitude measurement signal associated with highest-value wavelength LED. The light sensor can be used to implement a lensless imaging camera, tactile or proximate gesture user interface, or a simultaneous combination, and can additionally simultaneously serve as an image display.09-29-2011
20130127803DEVICE FOR EXITING SCREEN SAVER MODE - A device includes an infrared sensor, a signal processing unit, a first signal conversion unit, a second signal conversion unit, and an interface. The infrared sensor senses infrared rays and outputs a signal to the signal processing unit. The signal processing unit processes the signal, and outputs a processed signal to the first signal conversion unit. The first signal conversion unit transforms the processed signal into a keyboard signal, and outputs the keyboard signal to the second signal conversion unit. The second signal conversion unit transforms the keyboard signal into an interface signal according to type of the interface, and outputs the interface signal to the interface. The interface outputs the interface signal to a computer connected to the interface, to cause the computer to exit a screen saver mode.05-23-2013
20090040205METHOD FOR COMPENSATING FOR A CHROMATICITY SHIFT DUE TO AMBIENT LIGHT IN AN ELECTRONIC SIGNBOARD - A method for use with an electronic signboard (e.g., an LED signboard) compensates psychovisual chromaticity shift due to ambient light. The method first measures a color of light reflected from the signboard. Based on the measurement a set of calorimetric equations defining the desired light to be perceived as being displayed by each pixel of the signboard are solved. The calorimetric equations are the additive color mixture of the ambient light and the light to be actually displayed by the pixel in the absence of ambient light. The calorimetric equations may be expressed in units of uniform color space. The solutions of the colorimetric equations are then used to control the light actually displayed by the pixel.02-12-2009
20090167736Digital Image Picture Frame With Self-Adaptive Control of Brightness Level - The picture frame comprises: a decorative frame (07-02-2009
20110032229DISPLAY DEVICE AND ELECTRONIC APPARATUS COMPRISING THE SAME - A display device and an electronic apparatus comprising the same are disclosed. The display device can eliminate or reduce a noise effect on a result of detecting ambient light. The display device includes a light detecting device for detecting the ambient light. The light detecting device comprises a light detecting unit, a reference voltage generating unit and a comparing unit. The light detecting unit is configured to generate a light detecting voltage for indicating the intensity of the ambient light. The reference voltage generating unit is configured to generate a predetermined reference voltage. The comparing unit is configured to compare the light detecting voltage with the reference voltage, and includes a first input terminal for allowing the light detecting voltage to be inputted and a second input terminal, which has the polarity opposite to the polarity of the first input terminal, for allowing the predetermined reference voltage to be inputted.02-10-2011
20110032228Luminance Adjustment Systems and Methods for Display Units - Luminance adjustment systems and methods for display units are provided. The system includes a display unit, an image sensor, and a processing unit. The image sensor captures at least one image. The processing unit receives the image from the image sensor, and obtains the image luminance of the image. The processing unit adjusts a display luminance of the display unit according to the image luminance.02-10-2011
20100295832DISPLAY DEVICE DRIVE CIRCUIT AND DISPLAY DEVICE - A display device drive circuit (11-25-2010
20100295833DISPLAY DEVICE AND METHOD OF DRIVING DISPLAY DEVICE - The present invention provides an active matrix display device, including: a data signal line drive circuit mounted by COG (Chip On Glass) bonding; a photosensor, which is included in a display region, for (i) detecting light intensity and (ii) sending out an analog output serving as a signal indicative of the detected light intensity; and a common electrode (COM) to which a voltage being AC-driven is applied. The data signal line drive circuit includes an analog-to-digital conversion circuit which converts the analog output supplied from the photosensor into a digital output. The conversion is carried out during a first period, which overlaps none of (a) a time point at which each of the scanning signal lines starts being in a selected state, (b) a period during which data signals are sent out to respective data signal lines, and (c) a time point at which the voltage of the common electrode changes. Accordingly, it is possible to provide a display device employing a COG technique, which is capable of carrying out analog-to-digital conversion of the analog output supplied from the photosensor.11-25-2010
20100134456ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY INCORPORATING ELECTROLUMINESCENT ELEMENT,AND ELECTRICAL GENERATOR - An organic electroluminescent device including an organic electroluminescent layer that is stacked between a plurality of electrodes and emits light by an electric field generated between the plurality of electrodes and, and a power generating semiconductor part that is arranged on the periphery of this organic electroluminescent layer and utilizes from the light emitted by the organic electroluminescent layer an internal light L that has not been emitted from the transparent or semi-transparent electrode to the outside and remains inside in order to generate power by a photoelectric conversion function is provided.06-03-2010
20100302223IMAGE DISPLAY DEVICE - An image display device includes an image display panel (12-02-2010
20100302222LCD AND DISPLAY PROPERTY ADJUSTING METHOD THEREOF - A liquid crystal display (LCD) includes a graphic processor, a number of sensors, an optical signal collecting unit, a property saving unit, a property comparing unit, and a property setting unit. The optical signal collecting unit receives optical analog signals generated by the number of sensors, and converts the received optical analog signals into optical digital signals. The property saving unit saves a number of predetermined display properties and a number of predetermined optical signal ranges. The property comparing unit receives the optical digital signals and compares the optical digital signals with the plurality of predetermined optical signal ranges, and correspondingly selects corresponding predetermined display properties. The property setting unit receives the selected display properties and outputs the selected display properties to the graphic processor to adjust display properties of the LCD.12-02-2010
20110115766Energy efficient display system - A method for displaying an image on a display includes receiving a two dimensional image to be displayed on the display. The two dimensional image may be modified using a non-photorealistic technique and the contrast is reduced. At least one of the modifying and reducing is based upon a power usage factor. Also, the system may modify the power usage based upon audio, presence, smart meters, and brightness preservation.05-19-2011
20110109605DISPLAY DEVICE WITH IMAGE PICKUP FUNCTION, DRIVING METHOD, AND ELECTRONIC DEVICE - A display device with an image pickup function includes: a plurality of pixel signal lines each supplied with a pixel signal; a plurality of display pixels each performing a display operation based on the pixel signal; and a plurality of image pickup elements each including a photo-detector and a capacitor, the photo-detector generating a current of a magnitude corresponding to a photo-detection amount, the capacitor performing a discharging operation which follows a charging operation with the current from the photo-detector to output a charged voltage for a read operation. In the display device, a voltage level of the pixel signal line during the discharging operation is equal to a voltage level of the pixel signal line during the reading operation.05-12-2011
20110128264TRANSFLECTIVE DISPLAY DEVICE - A transflective display device includes upper and lower substrates, and a plurality of pixel regions that are disposed between the upper and lower substrates. Each of the pixel regions is controllable to switch between a bright state and a dark state, and includes a liquid crystal display structure, an emissive display structure, and a photovoltaic structure. The photovoltaic structure is capable of absorbing light to generate an electrical power. The liquid crystal display structure is controllable to operate between a transmissive mode and a reflective mode. The emissive display structure is controllable to emit graded light or to not emit light.06-02-2011
20090066680Display device and method for using the same - A display device includes an image display region displaying images, an automatic light sensor sensing ambient lighting conditions of a location of the display device, and a control system controlling an amount of light produced within the image display region by the displayed images based upon the sensed ambient lighting conditions, wherein the control system includes a single user interface displayed within the image display region and allows simultaneous enabling/disabling of the automatic light sensor and adjusting of image display characteristic values of the displayed images by a user.03-12-2009
20110109606TERMINAL DEVICE AND BACKLIGHT ILLUMINATION METHOD FOR DISPLAY THEREOF - A terminal device includes a display (05-12-2011
20110043503SPECTRALLY COMPENSATING A LIGHT SENSOR - A light sensor comprises a first photodetector (02-24-2011
20110115767SENSOR DEVICE, METHOD OF DRIVING SENSOR ELEMENT, DISPLAY DEVICE WITH INPUT FUNCTION AND ELECTRONIC APPARATUS - Techniques are described for detecting and compensating for characteristic changes of a photoelectric conversion element, such as changes related to the temperature of the photoelectric conversion element. A display device that includes an I/O display panel and a light-receiving drive circuit is disclosed. The I/O display panel includes a plurality of display pixels; and a plurality of photoelectric conversion elements including a first photoelectric conversion element that substantially is shielded from light and a second photoelectric conversion element that is exposed to light. The light-receiving drive circuit receives a first detection signal from the first photoelectric conversion element and resets the second photoelectric conversion element based on the first detection signal.05-19-2011
20120242633METHOD AND APPARATUS FOR CONTROLLING BRIGHTNESS IN A PORTABLE TERMINAL - A method and an apparatus for controlling brightness in a portable terminal are provided. The method comprises measuring temperature according to a preset period, extracting a brightness value mapped to the measured temperature from a stored brightness table, and changing a brightness of the portable terminal to correspond to the extracted brightness value.09-27-2012
20100164919LIQUID CRYSTAL DISPLAY DEVICE - Disclosed is a liquid crystal display device capable of performing image display with more adequate white level, during an operation of displaying an image which requires emphasizing white. A backlight illuminator for illuminating a liquid crystal display panel comprises a white light source adapted to generate white light, in addition to a laser source adapted to generate red light, blue light and green light. When an image to be displayed on a liquid crystal display panel requires emphasizing white, white light from the white light source is emitted to a liquid crystal display panel, in addition to red light, blue light and green light from the laser source. This makes it possible to display the image which requires emphasizing white, in the form of an image with more natural image quality.07-01-2010
20100164920INFORMATION PROCESSING APPARATUS - According to the invention, an information processing apparatus includes: a main body having a top face; a keyboard provided on the top face; an auxiliary illumination module provided on the top face not to overlap with the keyboard; a display unit connected to the main body by a hinge so as to be movable between a closed state and a open state, the display unit having a display face facing the top face at the open state; a display module provided on the display face; a plurality of imaging modules provided on the display face; a plurality of illuminating modules provided on the display face; a receiving module configured to receive video data via a network, the receiving module being housed in the main body; a display control module configured to let the display module display video based on the video data and local video based on local video data taken by at least one of the imaging devices.07-01-2010
20100225629PHOTO SENSING MODULE HAVING PROTECTION FUNCTION AND DISPLAY DEVICE - A photo sensing module is provided on a first substrate and includes a photo sensing device and a protection wiring. A gap exists between the photo sensing module and an external circuit, and the photo sensing device is provided on the first substrate. The protection wiring is electrically-conductive and located between the external circuit and at least a portion of the photo sensing device.09-09-2010
20100225628LIGHT SENSOR ARRANGEMENT - Ambient light is sensed for use in determining luminous flux. According to an example embodiment, ambient light is sensed using two light sensor arrangements that respectively respond differently to light of different relative wavelengths. The output of the sensors is nonlinearly combined to generate data indicative of the luminous flux. This luminous flux data is used to generate a control output for controlling an electronic display.09-09-2010
20090219267VIDEO DISPLAY APPARATUS AND VIDEO DISPLAY METHOD - According to an aspect of the invention, a video display apparatus includes: a sensor that measures an external environment to output the external environment; a storing unit that stores a correction value associated with the measured value; a adjusting unit that changes the correction value based on a given operation by a user; and a processor that adjusts a picture quality of a picture to be displayed on a display based on the measured value and the correction value.09-03-2009
20110122111DISPLAY DEVICE - A display device includes a photosensor on an active matrix substrate. The photosensor includes a photodetection element (D05-26-2011
20100013812Systems for Controlling Computers and Devices - One aspect of the invention provides computer input system including a registered light source that emits light and an interface including first and second reflective elements configured to reflect light emitted by the registered light source, a body, and a movable member coupled to the body. A portion of the movable member is movable with respect to the body to change the light reflected from the first and second reflective elements from at least a first pattern to a second pattern. The system includes a detector configured to detect light reflected by the first and second reflective elements and to generate a signal corresponding to the detected light and a processor configured to receive the signal generated by the detector and to identify a change from the first pattern to the second pattern to perform a computer mouse click, a computer mouse scroll, a keyboard input, and/or a combination thereof.01-21-2010
20090322719DETECTION ELEMENT - The present invention provides a detection element that can suppress generation of a residual image. A sensor portion includes a semiconductor layer, an upper electrode and a lower electrode. The semiconductor layer generates charges due to light being illuminated thereto. The upper electrode applies a bias voltage to the semiconductor layer. The lower electrode collects charges that have been generated at the semiconductor layer. The charges that have been generated at the semiconductor layer are collected and accumulated by the lower electrode. In the detection element, a saturation prevention circuit (diode and second bias line) is provided through which the accumulated charges flow-out when the charges that have been generated at the semiconductor layer are collected and a voltage level of the lower electrode becomes a saturation prevention voltage level Vs.12-31-2009
20100026670Display device and uses thereof - The invention relates to a display device comprising at least a light emitter, with power supply means suitable for the electrical supply for each emitter and the means of detection of irradiance of ambient light radiation. The detection means are also able to capture the ambient light radiation, to convert it into electrical energy and supply power to each emitter to increase the light level of each emitter according to the irradiance of ambient light radiation. The invention relates to any display system that undergoes illumination variations but for which the readability must be ensured such as computers, traffic lights or similar devices.02-04-2010
20100013811PHOTO SENSOR AND ORGANIC LIGHT EMITTING DISPLAY USING THE SAME - A photo sensor capable of reducing the distortion of signals output from the photo sensor to output a correct measured value and an organic light emitting display using the same. The organic light emitting display includes a pixel unit formed on a transparent substrate to display an image in response to scan signals and data signals, a scan driver generating the scan signals to transmit the scan signals to the pixel unit, a data driver generating the data signals to transmit the data signals to the pixel unit, and a photo sensor including a sensing unit sensing brightness of ambient light to output a sensing signal and a control unit for receiving the sensing signal to output a brightness control signal for controlling brightness of the image. The sensing unit disposed in a predetermined region of the transparent substrate and includes a first photo diode receiving a first driving power source to generate optical current so that a magnitude of the optical current is controlled in response to the brightness of the ambient light, a first capacitor for storing the optical current, and a first switch coupled between the first driving power source and the first photo diode to perform a switching operation.01-21-2010
20100013810INTELLIGENT DIGITAL PHOTO FRAME - A digital photo frame (DPF) includes a power source, a display panel, a light detector, a motion detector, a processing unit, and a power management unit. The light detector is configured to detect the ambient brightness. The motion detection unit is configured to detect whether anyone is around. The processing unit is connected to the light detector and the motion detector. If the motion detector detects someone is around the DPF and the light detector detects the ambient brightness is below a predetermined value, the processing unit controls the power management unit to provide power to the display panel.01-21-2010
20100033456DISPLAY DEVICE AND DISPLAY METHOD THEREOF - An object of the present invention is to provide a display device that achieves a balance between color reproducibility and luminance under the premise that the display device uses a display panel in which each pixel is configured by sub-pixels of four or more colors. An outside light detecting unit (02-11-2010
20100053132LIQUID CRYSTAL DISPLAY APPARATUS AND LIQUID CRYSTAL DISPLAY APPARATUS CONTROL METHOD - A liquid crystal display apparatus according to the present invention includes: a liquid crystal panel; a backlight provided on a rear face of the liquid crystal panel; a detector which detects RGB output light levels of the backlight; a first controller which controls backlight current for driving the backlight so that a prescribed luminance is attained based on the RGB output light levels detected by the detector; and a second controller which controls display signals supplied to the liquid crystal panel so that a prescribed chromaticity is attained based on the RGB output light levels detected by the detector.03-04-2010
20100053133DISPLAY DEVICE AND ELECTRONIC APPARATUS EQUIPPED WITH THE SAME - A display device that can reduce power consumption while displaying an image with the same aspect ratio as the display screen, and an electronic apparatus equipped with such a display device are provided. The display device includes a liquid crystal display that displays an image; normal-illumination LEDs that emit illumination light and a partial-illumination LED that emits illumination light; a light guide unit having a first incidence surface that receives the illumination light emitted from the normal-illumination LEDs and a second incidence surface that receives the illumination light emitted from the partial-illumination LED, and configured to optically guide the illumination light received by the first incidence surface to the entire surface of the liquid crystal display and to optically guide the illumination light received by the second incidence surface to a predetermined region having the same aspect ratio as the liquid crystal display; and a switch button used for switching the size of the image displayed on the liquid crystal display the size corresponding to the entire surface or the size corresponding to the predetermined region.03-04-2010
20120242635FINGERPRINT SENSOR AND INTEGRATABLE ELECTRONIC DISPLAY - A fingerprint sensor which includes a conductive layer which is incorporatable within an electronic display is disclosed. The fingerprint sensor also includes a controller coupled to the conductive layer to capture a fingerprint image and can further be adapted to control the display.09-27-2012
20110175874Display Device And Method For Driving The Same - A liquid crystal display device includes an optical sensor provided near an end portion of a liquid crystal display panel, a pixel provided in a display region of the liquid crystal panel, and a monitoring pixel. The optical sensor detects illuminance of light delivered from the liquid crystal display panel side. The pixel for which a transistor whose off-state current is low and the monitoring pixel are supplied with a potential to display a still image, at least light transmitted through a liquid crystal layer of the monitoring pixel is detected by the optical sensor, and the pixel in the display region of the liquid crystal display panel and the monitoring pixel are supplied again with a potential when a rate of change in illuminance reaches a predetermined value, so that the still image is kept being displayed.07-21-2011
20110148832TRANSFLECTIVE DISPLAY - A device includes a light source and a display that includes a number of pixels. Each of the pixels includes a red subpixel, a blue subpixel, a green subpixel and a reflective subpixel. The device also include control logic configured to activate the reflective subpixels in the display when the light source is turned off.06-23-2011
20110074751DEVICE AND METHOD FOR IMPROVING CONTRAST RATIO OF DISPLAY PANEL AND IMAGE DISPLAY SYSTEM - A contrast ratio improving device includes a controller and a photo detector. A contrast ratio improving method for use with a display panel includes the following steps. Firstly, multiple voltage values are applied to the display panel. Then, the brightness values corresponding to the voltage values applied to the display panel are detected. Afterwards, a voltage value corresponding to a specified value of the brightness values is selected as a peak voltage of the display panel. An image display system is also provided. The image display system includes a display panel and a memory. The memory stores a peak voltage obtained by the contrast ratio improving method.03-31-2011
20110074752DISPLAY-MODE CONTROL DEVICE AND RECORDING MEDIUM RECORDING DISPLAY-MODE CONTROL PROGRAM - A display-mode control device comprises a display-mode controller which acquires picked-up image data representing a picked-up image ahead of a display face of a display unit, specifies, using the acquired picked-up image data and an illumination position specifying a position of illumination in an image set beforehand, brightness of a position corresponding to the illumination position in the picked-up image as brightness of illumination, and controls a display mode based on the specified brightness of the illumination.03-31-2011
20110248975Image display apparatus and image displaying method - An image display apparatus includes: a display panel including an image display area and a dummy pixel area different from the image display area; an optical sensor detecting light emission luminance of the dummy pixel area on the display panel; and a control unit dividing the image display area on the display panel into a plurality of division areas, allowing pixels within the dummy pixel area to perform light emission to the same degree as the light emission of one or a plurality of pixels within each division area, and correcting luminance or chromaticity of the pixels within each division area based on the light emission luminance of the dummy pixel area detected by the optical sensor.10-13-2011
20110074753Display apparatus - A display apparatus includes a pixel array that has pixel units arranged in a matrix on the basis of a predetermined array pattern, each pixel unit having a light emitting element formed therein and having a structure configured to emit light generated from the light emitting element. In the structure of the pixel unit, a photodetection element which allows a current to flow in response to received light is provided to correspond to an inner area of a light emitting layer which forms the light emitting element. The pixel unit has a light incidence structure configured to allow the light, which is generated from the light emitting element, to be incident to the photodetection element.03-31-2011
20120120038Display With An Optical Sensor - A display system can include a panel 05-17-2012
20090027372PHOTOELECTRIC CONVERSION DEVICE AND ELECTRONIC DEVICE HAVING THE SAME - A plurality of transistors in which ratios of a channel length L to a channel width W, α=W/L, are different from each other is provided in parallel as output side transistors 01-29-2009
20090027371PHOTO DETECTOR AND METHOD FOR FABRICATING THE SAME - A photo detector is disclosed. The photo detector includes a substrate, a first patterned semiconductor layer with a first state, a dielectric layer, a patterned conductive layer, an inter-layer dielectric, a second patterned semiconductor layer with a second state, two first electrodes disposed on the inter-layer dielectric and two second electrodes disposed on portions of the second semiconductor layer. The first patterned semiconductor layer having a first doping region and a second doping region is disposed on a transistor region of the substrate. The dielectric layer is disposed to cover the substrate and the first semiconductor layer, the patterned conductive layer is disposed on the dielectric layer, and the inter-layer dielectric having at least two openings adapted to expose the first doping region and the second doping region is disposed to cover the dielectric layer. The second patterned semiconductor layer is disposed on a photosensitive region and the first electrodes are electrically connected to the first patterned semiconductor layer.01-29-2009
20110069051DISPLAY - A display unit including a display region including a plurality of luminescence elements, a non-display region including a plurality of luminescence elements and a photoreception element, a drive unit connected to each of the luminescence elements in the display region, a photoreception drive circuit connected to the plurality of luminescence elements in the non-display region, and a photoreception processing unit which receives a signal output from each of the plurality of luminescence elements in the non-display region and outputs a degradation signal to the drive unit, the drive unit providing a signal to the plurality of luminescence elements in the display region based on the degradation signal.03-24-2011
20110069050Display system - A display panel comprises a plurality of display printed circuit boards ‘PCB’ each of which has a plurality of light sources; and at least one bus bar; wherein the bus bar is electrically and physically connected each of the PCBs such that the plurality of PCBs are coupled together and held in registration with one another.03-24-2011
20110043501Material Simulation Device - A material simulation device is described, capable of simulating emissive and non-emissive colored surfaces, both textured and smooth. The material properties being simulated may be controlled electronically, and may be altered rapidly making smooth animation of surface properties possible. A controller receives data from spectral light sensors, processes the data, and modulates the output of one or more display elements to control the amount of light emitted at a surface of the device. The sum of light from the display elements and light from the environment reflected from the surface of the device matches the amount of light reflected from a real surface with the material properties being simulated.02-24-2011
20110254819IMAGE DISPLAY APPARATUS - An image display apparatus is for correcting an input image signal and displaying an image on a display unit based on the corrected image signal, and includes: an illuminance detector for sequentially detecting illuminance values around the apparatus; an illuminance analyzer for sequentially outputting image settings for correction of the image signal depending on the detected illuminance values; a setting selector for outputting an image setting which has been output from the analyzer a number of times greater than a number of times any other image setting has been output, or an image setting determined by the statistic of the image settings output from the analyzer; and a setting application unit for changing the image setting used to correct the image signal to be equal to the image setting output from the selector, when a predetermined change occurs in the input image signal or when a predetermined time has come.10-20-2011
20110148834LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR AUTOMATICALLY CONTROLLING BRIGHTNESS - Disclosed herein are a liquid crystal display device including a photosensor for sensing brightness of external light such that the photosensor can stably sense the external light without influence of temperature or external noise, and a method for automatically controlling the brightness, the liquid crystal display device includes a liquid crystal panel having a display area and a non-display area defined therein and including first and second substrates facing each other and a liquid crystal layer filled between the first and second substrates, the first substrate having an outer portion protruding from the second substrate, a gate driver and a data driver formed in the non-display area of the first substrate, a photosensor formed in the outer portion of the first substrate, a dummy sensor formed in the non-display area of the first substrate covered by the second substrate, a backlight unit formed below the liquid crystal panel, and a control unit including a timing controller for controlling the gate driver, the data driver and the backlight unit, and a power supply unit for supplying a power voltage.06-23-2011
20110210952SYSTEM AND METHOD FOR MONITORING A SIGNAGE SYSTEM OF A TRANSIT VEHICLE - A sign-monitoring system includes at least one electronic sign and a controller comprising a processor and memory. The electronic sign includes a pixel array, the pixel array including a plurality of pixels. The electronic sign further includes an embedded controller coupled to the at least one electronic sign. The embedded controller develops diagnostic information for the at least one electronic sign, the diagnostic information including information related to a number of malfunctioning pixels in the plurality of pixels. The controller is communicably coupled to the embedded controller and receives at least a portion of the diagnostic information from the embedded controller. In addition, the controller assesses the at least a portion of the diagnostic information to develop health information. The assessment involves evaluating the information related to the number of malfunctioning pixels.09-01-2011
20120169684SEAMLESS MOSAIC PROJECTION SYSTEM AND METHOD OF ALIGNING THE SAME - A display system for displaying a seamless mosaic of a plurality of images projected by a plurality of projectors by aligning the images projected so the mosaic appears seamless. The display system includes a display surface, a first projector, and a second projector configured to project onto distinct areas that partially overlap. A light detector located adjacent to the display surface detects light projected onto the overlap area. Image signals received by the projectors are adjusted to eliminate the overlap and or balance the brightness of each projected image so the composite image appears to be a seamless mosaic.07-05-2012
20080246749Organic light emitting diode (OLED) display and a method of driving the same - An organic light emitting diode (OLED) display includes an illuminance sensing unit configured to sense an external illuminance, a brightness determination unit configured to determine a brightness of the OLED display according to an illuminance sensed by the illuminance sensing unit, a driving voltage determination unit configured to determine a driving voltage corresponding with a current saturation point of the OLED display, the driving voltage being determined based at least in part on a driving current and the brightness determined by the brightness determination unit, a voltage conversion unit configured to receive an input voltage, generate a first voltage higher than the input voltage, and generate a second voltage lower than the input voltage, and a display unit configured to receive the first and second voltages from the voltage conversion unit and display an image.10-09-2008
20110164012DISPLAY DEVICE - In a photosensor in the pixel region of an active matrix substrate, the potential of a storage node is read out to output wiring as sensor circuit output, the potential of the storage node having changed in accordance with the amount of light received by a photodetection element in a sensing period, the sensing period being from when a reset signal (RS) is supplied until when a readout signal (RW) is supplied. A sensor startup period whose length is greater than or equal to the length of the sensing period is provided after a sensor data unnecessary period in which the sensor circuit output is not necessary, and furthermore before a valid sensor data period in which the sensor circuit output is necessary, and the sensor circuit output is read out in the valid sensor data period from the photosensor to which the reset signal was applied in the sensor startup period.07-07-2011
20080252629Display apparatus and brightness correction method thereof - A display apparatus and a brightness correction method thereof are provided. The display apparatus includes a body and a light sensing device. The body includes a screen and a control module and the control module is coupled to the screen for controlling brightness of the screen. The light sensing device, coupled to the body through a cable, is used for sensing brightness so as to generate a detected brightness value accordingly, wherein the control module receives the detected brightness value through the cable.10-16-2008
20100321355DISPLAY PANEL INCLUDING OPTICAL SENSOR, DISPLAY DEVICE USING THE DISPLAY PANEL AND METHOD FOR DRIVING DISPLAY PANEL INCLUDING OPTICAL SENSOR - Provided are a display panel including an optical sensor that can correct output of an optical sensor according to a change in the environmental temperature, and a display device using the same. The display panel including an optical sensor has an active matrix substrate (12-23-2010
20100321357Image Sensor and Image Sensor Integrated Type Active Matrix Type Display Device - To fabricate an active matrix type display device integrated with an image sensor at a low cost and without complicating process, an image sensor laminated with TFT and a light receiving unit is formed on a light receiving matrix, a display matrix is arranged with TFT and pixel electrodes on a matrix and formed with an electrode layer functioning as a black matrix, a lower electrode of the light receiving unit is formed by a starting film the same as that of the black matrix, a terminal for fixing potential of an upper electrode is formed by starting films the same as those of a signal line, the electrode layer or pixel electrodes and the terminals function also as shield electrodes for a side face of the light receiving unit since potential thereof is fixed.12-23-2010
20100277452MOBILE DISPLAY CONTROL SYSTEM - A method for operation of a mobile display control system is provided including providing a sensor for monitoring an ambient light level; modifying an unprocessed video stream based on the ambient light level from the sensor for forming a video stream; generating a pixel brightness and a contrast from the video stream and the ambient light level; creating a gamma corrected stream from the pixel brightness, the contrast, and the video stream; adjusting a display for viewing a video in the ambient light level by coupling the gamma corrected stream to the display; and adjusting the display for viewing a video at a set brightness for a set time where the ambient light level is changing.11-04-2010
20080204438Organic light emitting display, controller therefor and associated methods - A display driven by a data signal and a light emission signal may be controlled by a control system including a first through fourth controller. The first controller may select a gamma value in accordance with ambient illumination and output a corresponding gamma compensation signal to control a gradation voltage of input image data. The second controller may compare the ambient illumination with a reference value, generate a selection signal in response thereto, and provide changed image data obtained by changing input image data in accordance with the selection signal as the data signal. The third controller may apply a scaling factor to the input image data generated from extracted features related to the input image data and a scale ratio obtained from the extracted features, and output scaled image data as the data signal. The fourth controller may control a pulse width of the emission control signal.08-28-2008
20080204437Light-sensor-placement device for color display, and displays comprising same - Light-sensor devices are disclosed for use with a color display such as a CRT, LCD, plasma display, or other type of display. The device includes an arm having a proximal end and a distal end, wherein a light sensor is situated on or near the distal end. A mover, coupled to or near the proximal end, is configured to move the arm to place the sensor selectively at a parked position and at a measurement position. The mover can be electrically energizable to cause motion of the arm. The mover can be or include a motor. Such a light-sensor device can be mounted to a display and thus become a substantially permanent part of the display and can be used with displays that are difficult or inconvenient to keep color-calibrated, or are difficult or impossible to reach for color-calibration.08-28-2008
20110261040INFORMATION DETECTION DISPLAY - An information detection device includes: a plurality of light sensing units each configured to detect light; a plurality of sensor scanning drivers each configured to apply sensor scanning signals to the light sensing units; a sensing signal processor configured to receive position information detected by the light sensing units; a plurality of bias applying units each configured to apply bias voltages to the light sensing units; wherein each bias applying unit applies a different polarity of bias voltage.10-27-2011
20110164010Display apparatus, light detection method and electronic apparatus - Disclosed herein is a display apparatus including a plurality of pixel circuits, a displaying driving section, and a light amount information detection section. The pixel circuits are disposed in a matrix at positions at which a signal line and a plurality of scanning lines cross with each other. The displaying driving section applies a signal value to each pixel circuit and drives the scanning lines to cause the pixel circuit to emit light with a luminance according to the signal value to carry out image display. The light amount information detection section detects light amount information. Each pixel circuit includes a light emitting element, a driving transistor, a sampling transistor, and a switching transistor. Each pixel circuit can execute light detection operation of varying the gate potential of the driving transistor in response to a received light amount and outputting the source potential of the driving transistor.07-07-2011
20110164011Display apparatus, light detection method and electronic apparatus - Disclosed herein is a display apparatus, including pixel circuits disposed in a matrix at positions at which signal lines and scanning lines cross each other and individually including a light emitting element; a light emission driving section to apply a signal value to each of the pixel circuits to cause the circuit to emit light of a luminance; and a light detection section provided in each of the pixel circuits and including a sensor-switch serving element which functions by switching thereof between an on state and an off state and functions, in the off state thereof, as a light sensor for detecting light from the light emitting element of the pixel circuit, and a detection signal outputting transistor connected to a light detection line for outputting light detection information corresponding to a variation amount of current of the sensor-switch serving element in the off state to the light detection line.07-07-2011
20110164013DISPLAY PANEL AND DISPLAY PANEL INSPECTION METHOD - The present invention provides a display panel (07-07-2011
20110043502DISPLAY DEVICE AND ELECTRONIC APPARATUS - A display device includes: a dummy pixel provided on a display panel; a reflection film provided on a light-emitting-surface side of the display panel for reflecting light emitted from the dummy pixel; a photodetector provided on an opposite side of the display panel from the light-emitting surface for detecting the light emitted from the dummy pixel and reflected from the reflection film; and a correction circuit for correcting, based on the results of detection by the photodetector, the luminance of effective pixels that contribute to image display.02-24-2011
20110134091ELECTRONIC APPARATUS AND BACKLIGHT BRIGHTNESS CONTROL METHOD THEREOF - An electronic apparatus and a backlight brightness control method thereof are provided. The control method includes the following steps. Detection of an ambient brightness for the electronic apparatus is made to output an ambient brightness signal. Next, whether to adjust the backlight brightness for the display is determined according to a comparison between the ambient brightness signal and a current backlight brightness. If the comparison result indicates that the ambient brightness decrement is lower than a decrement threshold, then an adjustment value is selected from a plurality of step sizes according to the current backlight brightness to decrease the backlight brightness gradually, so that the backlight brightness changes towards a target backlight brightness corresponding to the ambient brightness signal. The step sizes include a first step size and a second step size. The backlight brightness for the display is adjusted according to the current backlight brightness and the adjustment value.06-09-2011
20110080391DISPLAY DEVICE - A display device includes a photosensor in a pixel region (04-07-2011
20110261039VEHICLE DISPLAY APPARATUS - A vehicle display apparatus includes a first indicator, a second indicator, and an illuminance detector. The illuminance detector is configured detect illuminance outside a vehicle. Display luminance of the second indicator is capable of being changed in a specific luminance range in accordance with the illuminance outside the vehicle detected by the illuminance detector irrespective of daytime or nighttime. A luminance setting device is configured to set the specific luminance range. A controller is configured to increase or decrease the display luminance of the second indicator at least in a portion of the specific luminance range set by the luminance setting device based on display luminance for each of daytime and nighttime of the first indicator set by the luminance setting device.10-27-2011
20110080390DISPLAY DEVICE - Provided is a display device with a photosensor having little variation between sensors. The display device includes a photosensor in a pixel region of an active matrix substrate. The photosensor includes a photodetection element (M04-07-2011
20110080389ELECTRONIC APPARATUS - An electronic apparatus includes an image display panel that includes an image display screen to display an image on a front side; a light emitting/receiving unit that is disposed at an end of a first side of the image display panel and emits and receives light to detect a position of an object proximal to or on a front surface of the image display panel; a cover that exposes the image display screen and that includes a plate covering at least the first side of the front surface of the image display panel with a gap; and a reinforcement component that contacts the plate between the image display panel and the plate.04-07-2011
20110096048DISPLAY BRIGHTNESS ADJUSTMENT - Embodiments of the present invention can receive a data point defining an ambient light level associated with a display and a corresponding brightness adjustment of the display with respect to a reference brightness. The embodiments can then define a brightness response model for the display based on the data point and at least one additional data point.04-28-2011
20110096049DISPLAY DEVICE - A display device includes a photosensor in a pixel region of an active matrix substrate. The photosensor includes a photodiode (D04-28-2011
20100110053LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device having an image input function capable of suppressing the degradation of image quality of a display image and a captured image caused by a parasitic capacitance is provided. The liquid crystal display device, which includes an active matrix substrate (05-06-2010
20130009927DUAL-FUNCTION LIGHT GUIDE FOR LCD BACKLIGHT - A light emitter/sensor includes a lamp, a light sensor, a light guide, and a light controller. The light guide has a pair of opposite ends and is optically-coupled to the lamp and the light sensor at one of the ends. The light guide is configured to convey light emitted from the lamp to the other end of the light guide, and from that other end to the light sensor. The light controller is coupled to the lamp and the light sensor and is configured to flash the lamp and to determine the intensity of light at that other end of the light guide, via the light guide and the light sensor, during an interval between the flashes.01-10-2013
20100214275Display device and method for adjusting the luminance thereof - A display device for receiving and displaying an image signal is disclosed. The display device comprises a display screen, a light sensor, a light information determining unit, an image analysis unit, a luminance determining unit, and a control unit. The light sensor is installed near the display screen for detecting an ambient luminance level. The light information determining unit is utilized for determining a first luminance adjusting value according to the ambient luminance. The image analysis unit is utilized for analyzing the image signal to obtain a color level value. The luminance determining unit is utilized for calculating a second luminance adjusting value according to the color level value, and for determining a final luminance adjusting value according to the first luminance adjusting value and the second luminance adjusting value. The control unit is utilized for adjusting the luminance of the display screen according to the final luminance adjusting value.08-26-2010
20100079426SPATIAL AMBIENT LIGHT PROFILING - A method for applying user experience effects to a displayed image. The method may sample data from sensors and create a profile based on the sampled data. The method may use the profile to alter the displayed image to reflect the environment of a computing system.04-01-2010
20100283771INFORMATION DETECTING DISPLAY DEVICE AND METHOD FOR DETECTING INFORMATION IN THE DISPLAY DEVICE - An information detecting display device includes an information detecting substrate having a photo-sensor and a switching substrate facing the information detectable substrate, wherein the information detectable substrate includes a first substrate, a plurality of photo-sensors arranged in a matrix on the first substrate and which generate sensing signals, a plurality of sensor scanning lines which transmit sensor scanning signals for controlling output of the sensing signals and a plurality of sensor signal lines which transmit the sensing signals in response to the sensor scanning signals, wherein at least two of the sensor scanning lines transmit substantially the substantially same sensor scanning signals simultaneously.11-11-2010
20100283770IMAGE DISPLAY APPARATUS AND IMAGE DISPLAY METHOD - According to one embodiment, an image display apparatus comprises a detector configured to detect an illuminance of surroundings, an upper and lower limit calculator configured to calculate an upper limit and a lower limit of luminance based on the detection result of the illuminance, a luminance calculator configured to calculate the luminance of each of light sources to display an image based on an input image signal in the range of the upper limit to the lower limit, a correction module configured to correct the input image signal based on the calculated luminance, a light emitter configured to emit light based on the calculated luminance, the light emitter includes the light sources, and a light modulator configured to display an image by modulating light from each of the light sources based on the corrected input image signal.11-11-2010
20080218501Display illumination system and method - The present invention provides automatic adjustments to an image presentation based upon changes in ambient light. The adjustments can be made to the back-lighting and/or the pixel data. The ambient lighting can be measured by a variety of sensors (e.g., a digital camera) from a variety of orientations. For example, the sensor can be directed away from the display (e.g., towards the user) or the sensor can be directed towards the display (e.g., from an angle comparable to the users view). In one exemplary implementation a graphics control system utilizes real time ambient light sampling input to calibrate a back-light illumination level and/or pixel illumination levels. The present invention can be implemented in a variety of devices (e.g., laptop, PDA, cell phone, headsup display, etc.).09-11-2008
20110181566Image information detecting device - The present invention is directed to an image information detecting device that detects image light, and includes an image information detecting member that includes a detection surface having a light receiving sensor that detects image light, and a pressing member that is connected at one end thereof to the image information detecting member, and is provided so as to protrude from an other surface side which is opposite to the detection surface side.07-28-2011
20100066713IMAGE DISPLAY - An image display device including an illumination means and a display means is provided. The illumination means has: a light source including a plurality of partial lighting sections; a drive means for driving the partial lighting sections separately; a plurality of photo-reception elements; and a control means for controlling the drive means based on amount of light received with the photo-reception elements to control photo-emission quantity of each of the partial lighting sections. Light from one or a set of partial lighting sections is received commonly with two or more of the photo-reception elements. The control means controls a photo-reception quantity ratio to maintain an initial state value. The photo-reception quantity ratio is a ratio among photo-reception quantity values in the two or more of the photo-reception elements, each of the photo-reception quantity values corresponding to light from the one or the set of partial lighting sections.03-18-2010
20100066712VIDEO PROCESSING APPARATUS AND VIDEO PROCESSING METHOD - According an aspect of the invention, a video processing apparatus including: a sensor configured to measure an illuminance level; and a processing unit configured to receive a video signal and perform a gamma correction processing on the video signal to correct luminance of the video signal by using a correction value for the illuminance level so that the correction value becomes smaller as the illuminance level gets larger.03-18-2010
20100066714DISPLAY DEVICE AND DRIVING CONTROL METHOD FOR THE SAME - A display device includes a display panel having a display area in which a plurality of display pixels are two-dimensionally arranged, to display image information, a power supply driving section applying, to each of the display pixels in the display area, one of a first power supply voltage having a voltage value at which the display pixel is set to a non-display-operation state and a second power supply voltage having a voltage value at which the display pixel is set to a display operation state, and a control section controlling the power supply driving section to set a area-ratio of an first area in the display area in which the display pixels to which the first power supply voltage is applied are arranged to an second area in which the display pixels to which the second power supply voltage is applied are arranged.03-18-2010
20100194724LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device comprises a liquid crystal display panel; and a backlight. The backlight includes: a plurality of fluorescent lamps arranged in parallel in a plane parallel to the liquid crystal display panel; a housing for supporting each of the plurality of fluorescent lamps; and a plurality of blue light emitting elements each disposed between the housing and the plane in which the plurality of fluorescent lamps are arranged in parallel. The plurality of blue light emitting elements are arranged at positions overlapped with the plurality of fluorescent lamps when projected onto a plane parallel to a surface of the liquid crystal display panel from a direction perpendicular to the surface of the liquid crystal display panel, to thereby prevent yellowing from occurring in white color tone of the backlight.08-05-2010
20100194725Display Apparatus - A display apparatus includes an illumination acquisition part acquiring the illumination of outdoor daylight, a time acquisition part acquiring date and/or time, a control part controlling display luminosity according to the output of the illumination acquisition part, wherein the control part is characterized by determining the control range of a display luminosity based on the date and/or time the time acquisition part acquired.08-05-2010
20110187687DISPLAY APPARATUS, DISPLAY METHOD, PROGRAM, AND STORAGE MEDIUM - A display apparatus (08-04-2011
20110148835DISPLAY DEVICE INCLUDING OPTICAL SENSOR AND DRIVING METHOD THEREOF - An object is to provide a display device with low power consumption and good display quality. A first substrate is provided with a terminal portion, a pixel electrode, a switching transistor including an oxide semiconductor, a first optical sensor having high optical sensitivity to visible light, and a second optical sensor having optical sensitivity to infrared light and having lower optical sensitivity to visible light than the first optical sensor. The illuminance or color temperature around a display device is detected using the first and second optical sensors, and the luminance or color tone of a display image is adjusted. A second substrate is provided so as to face the first substrate, and is provided with a counter electrode. In a period for displaying a still image, the switching transistor is turned off so that the counter electrode is brought into a floating state.06-23-2011
20110148833ELECTROPHORETIC DISPLAY AND METHOD FOR ADJUSTTING DRIVING SETTINGS THEREOF - A method for adjusting driving waveforms in an electrophoretic display includes: measuring grey level of the electrophoretic display periodically; comparing the measured grey level with a standard grey level, selecting a driving waveform from pre-stored driving waveforms according to the current grey level and the standard grey level if the measured grey level is not equal to the standard grey level; and applying the selected driving waveform to achieve the standard grey level. The electrophoretic display is also provided.06-23-2011
20110148836DISPLAY DEVICE AND METHOD FOR USING THE SAME - A display device includes an image display region displaying images, an automatic light sensor sensing ambient lighting conditions of a location of the display device, and a control system controlling an amount of light produced within the image display region by the displayed images based upon the sensed ambient lighting conditions, wherein the control system includes a single user interface displayed within the image display region and allows simultaneous enabling/disabling of the automatic light sensor and adjusting of image display characteristic values of the displayed images by a user.06-23-2011
20110216049VISIBLE LIGHT COMMUNICATION APPARATUS AND METHOD - Provided is a visible light communication apparatus. The visible light communication apparatus includes: a display unit that displays an image according to an image signal; a light source unit that operates as a backlight for the display unit, generates an optical signal by driving a light source based on a data signal, and outputs the generated optical signal to the display unit; a sensor unit that detects a region corresponding to a shape of a terminal which touches or approaches the display unit; and an image signal conversion unit that converts the image signal such that an image displayed in the region detected by the sensor unit is converted to a bright image having a gray level higher than a predetermined reference gray level.09-08-2011
20100020052METHOD OF CONTROLLING DISPLAY CHARACTERISTIC AND DISPLAY APPARATUS USING THE SAME - A display characteristic control method provides an on-screen display (OSD) of display characteristics values automatically controlled according to ambient illuminance levels, to enable user recognition and confirmation of current values. A display apparatus adopting the method includes a display module for displaying a video signal; an illuminance sensor for detecting a level of ambient illuminance; a system controller for adjusting, based on the detected ambient illuminance, at least one display characteristic of the display module and for generating a set of control values corresponding to the adjusted at least one display characteristic; a display characteristic controller for controlling the display module using the adjusted at least one display characteristic; and an OSD generator for generating OSD data for display on a display screen together with the video signal, the displayed OSD data corresponding to the display characteristic control values of the adjusted at least one display characteristic.01-28-2010
20100020051ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - A method of driving an organic light emitting display device including a plurality of pixels during a frame including subframes includes: representing gray levels by utilizing some of the subframes of the frame prior to degradation of an organic light emitting diode of each of the plurality of pixels; and compensating for the degradation of the organic light emitting diodes by changing the utilized subframes to increase a portion of the frame utilized by the plurality of pixels to represent the gray levels.01-28-2010
20110074750ELECTROLUMINESCENT DEVICE AGING COMPENSATION WITH REFERENCE SUBPIXELS - An electroluminescent (EL) device including an illumination area having one or more primary EL emitters; a reference area having a reference EL emitter; a reference driver circuit for causing the reference EL emitter to emit light while the EL device is active; a sensor for detecting light emitted by the reference EL emitter; and a measurement unit for detecting an aging-related electrical parameter of the reference EL emitter while it is emitting light. The device further includes a controller for receiving an input signal for each primary EL emitter in the illumination area, forming a corrected input signal from each input signal using the detected light and the aging-related electrical parameter, and applying the corrected input signals to the respective primary EL emitters in the illumination area.03-31-2011
20100253660DISPLAY DEVICE AND ELECTRONIC APPARATUS EQUIPPED WITH THE SAME - A display device includes a display layer, a first glass substrate, a second glass substrate, an external light sensor, a black matrix and a color filter layer. The display layer has polarizing or light-emitting display components, which are arranged in a matrix. The first glass substrate and the second glass substrate are respectively disposed over and under the display layer. The external light sensor is disposed on an interface between the first glass substrate and the display layer for detecting an external light passing through the second glass substrate incident to the external light sensor. The black matrix is disposed on an interface between the second glass substrate and the display layer. The external light passing through the second glass substrate is sheltered by the black matrix. The color filter layer is deposited on the black matrix and has a specified transmittance spectrum property.10-07-2010
20120146973DISPLAY DEVICE - The present invention relates to a display device that measures display characteristics (such as luminance or chromaticity) associated with a display panel. The display device of the present invention has a light sensor (06-14-2012
20120038602ADVERTISEMENT DISPLAY SYSTEM AND METHOD - In an advertisement display method, a plurality of reference images of an object to be advertised are captured and stored in a storage system of a computing device to create an image database of the object. Real-time scene images around a billboard are captured by the image capturing unit, and analyzed to detect whether there are people nearby the billboard. When a person is detected nearby the billboard, image data of the person are extracted from one of the scene images in which the person is detected and temporarily stored in the storage system, and a position of the person is determined according to the image data. A reference image of the object is selected from the image database according to the position of the person, and is displayed on a corresponding area of the billboard towards the position of the person.02-16-2012
20120306832DISPLAY SYSTEM AND ELECTRICAL APPLIANCE - A display system in which the luminance of light-emitting elements in a light-emitting device is adjusted based on information on an environment. A sensor obtains information on an environment as an electrical signal. A CPU converts, based on comparison data set in advance, the information signal into a correction signal for correcting the luminance of EL elements. Upon receiving this correction signal, a voltage changer applies a predetermined corrected potential to the EL elements. Thus, this display system enables control of the luminance of the EL elements.12-06-2012
20120306831BIREFRINGENT LENSLET CAMERA - Embodiments of a display device with a vision system are disclosed. In one example, a display device comprises a plurality of pixels for displaying light in a first polarization state, a plurality of photodetectors, where each photodetector in the plurality of photodetectors includes a polarization filter configured to transmit light in a second polarization state to the photodetector and reject light in other polarization states, a plurality of lenslets, where each lenslet in the plurality of lenslets focuses light in the second polarization state onto at least one photodetector in the plurality of photodetectors, a material surrounding the plurality of lenslets, where, for each lenslet in the plurality of lenslets, indices of refraction of the lenslet and the material are substantially equal for light in the first polarization state, and where indices of refraction of the lenslet and the material are different for light in the second polarization state.12-06-2012
20110304598Active Photosensing Pixel - An active photosensing pixel is disclosed, in which a two-terminal photosensing transistor has a first terminal coupled to a first node, a second terminal coupled to a selection line and a control terminal connected to the first terminal. A driving transistor has a first terminal coupled to a first reference voltage, a second terminal coupled to an output line and a control terminal connected to the first node.12-15-2011
20110304600OPTICAL POSITION DETECTING DEVICE AND DISPLAY DEVICE WITH POSITION DETECTING FUNCTION - An optical position detecting device includes: a plurality of detection light source sections which emits a detection light; a light source driving section which turns on a part of the plurality of detection light source sections in a first period, and turns on the other part thereof in a second period; a first light detecting section which detects the detection light reflected by a object; a second light detecting section which has a sensitivity peak in a wavelength band which is different from that of the first light detecting section and detects the detection light reflected by the object; and a position detecting section which detects the position of the object on the basis of the intensity of the detection light in the first light detecting section and the intensity of the detection light in the second light detecting section in the first and second periods.12-15-2011
20110304599LED Driving Device and Display Apparatus - An embodiment of the present invention includes an LED driving device that causes a plurality of LEDs to emit light, wherein the device includes: an LED driving circuit configured to drive the LEDs so that at least one of the plurality of LEDs emits light as a first. LED and an LED around the first LED is prevented from emitting light as a second LED; a photodetection unit configured to detect light emission of the first LED through the second LED and detect a light emission quantity of the first LED; and a controller configured to adjust a light emission quantity of the first LED based on the light emission quantity of the light emission of the first LED detected by the photodetection unit.12-15-2011
20110304597Low power backlight for display - There are provided systems, devices and methods for controlling backlighting in an electronic device. In one embodiment, an electronic device an electronic device having a processor and a display assembly coupled to the processor. The display assembly being configured to provide visual output. The display assembly includes a backlight layer having one or more light sources. At least one of the one or more light sources is coupled to ground via a switch. The switch is configured to selectively operate the one or more light sources to adjust a brightness of the visual output.12-15-2011
20110050663IMAGE DISPLAY DEVICE AND IMAGE ADJUSTMENT METHOD - An image display device includes: an external light measurement unit measuring the illuminance of an external light a plurality of times, and generating a measurement value indicating the illuminance; a storage unit storing history data which shows the measurement values, and color mode data which shows a correspondence between the illuminance and a color mode; a determination unit, based on the history data, determining whether or not it is a changed condition wherein the illuminance changes upward or downward, or the illuminance fluctuates; and an adjustment unit, in the event that it is not the changed condition, determining the color mode to be applied based on the measurement values and the color mode data, and adjusting the color or brightness of an image in accordance with the color mode, and in the event that it is the changed condition, continuing the adjustment currently being applied as the image adjustment.03-03-2011
20110050662DISPLAY - A display includes a housing including a frame, a panel fixedly arranged inside the frame and including a front pane which presents a picture visible in a viewing area substantially in front of the front pane, a sensor fixedly coupled to the housing and arranged in the viewing area in front of the front pane which receives at least one spectral radiation component of the picture emitted by the panel, and wherein the sensor is fixed on the frame such that it receives visible radiation of a surrounding area of the display.03-03-2011
20110050661LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display (LCD) device is capable of automatically adjusting a color display parameter according to external light. The LCD device includes an LCD panel, a backlight module, a photosensitive module, and a controller. The LCD panel has a display region and a light-incident region. The backlight module is disposed below the LCD panel and corresponding to the display region. The photosensitive module is disposed below the LCD panel and corresponding to the light-incident region, for receiving an optical signal passing through the LCD panel and converting the optical signal into an electrical signal. The controller is electrically connected to the LCD panel and the photosensitive module, for automatically adjusting a color display parameter of the LCD panel according to the electrical signal.03-03-2011
20090278828Method and Apparatus for Automatic Brightness Adjustment on a Display of a Mobile Electronic Device - A system and method is provided for use in a mobile electronic device for adjusting brightness of a display on the mobile electronic device. The method comprises collecting a plurality of light sensor samples using an ambient light sensor of the mobile electronic device; calculating a representative value of the plurality of light sensor samples; comparing the representative value to at least one brightness threshold value; determining if a predetermined application is active on the mobile electronic device; determining whether to adjust the brightness of the display based on the comparison and based on whether predetermined application is active on the device; and adjusting the brightness of the display.11-12-2009
20090167737METHOD AND APPARATUS FOR DYNAMICALLY ADJUSTING VIEWING ANGLE OF SCREEN - A method and an apparatus for dynamically adjusting a viewing angle of a screen are provided. The method is suitable for dynamically adjusting a viewing range of a screen of a handheld electronic device, wherein the viewing angle of the screen is adjustable. The method is as follows. First, a shifting value of a target deviating from the viewing range of the screen is detected by a sensor. Next, the viewing range of the screen is dynamically adjusted according to the shifting value, so as to cover the target within the viewing range of the screen. Accordingly, the snooping for the content of a frame displayed on the screen by others can be prevented and a user can view the frame displayed on the screen more conveniently.07-02-2009
20100123695METHOD OF DRIVING LIGHT-EMITTING DIODES, BACKLIGHT ASSEMBLY FOR PERFORMING THE METHOD AND DISPLAY APPARATUS HAVING THE BACKLIGHT ASSEMBLY - A method of driving light-emitting diodes (LEDs), a backlight assembly for performing the method, and a display apparatus having the backlight assembly are disclosed for various embodiments. For example, the backlight assembly includes a light source unit and a light source controller. The light source unit includes red, green, and blue LEDs generating red, green, and blue light, respectively. The light source controller detects amounts of the red, green, and blue light, respectively, to compare the actual light amount ratio of the red, green, and blue light with the reference light amount ratio. The light source controller controls the red, green, and blue LEDs, respectively, so that an actual light amount ratio becomes substantially identical to a reference light amount ratio when the actual light amount ratio is not identical to the reference light amount ratio.05-20-2010
20110316829LIQUID CRYSTAL DISPLAY DEVICE - A backlight of a liquid crystal display device is divided into a plurality of regions. A backlight area dimmer sets a dimming value for each of the regions of the backlight according to a characteristic amount of the input image. A backlight dimming limiter sets an upper limit and lower limit of the dimming value set by the backlight area dimmer. In this case, the backlight dimming limiter may set the upper and lower limits of the dimming value according to a combination of at least two pieces of information among illuminance information on the external light, category information on the input image and image mode information set by the user.12-29-2011
20110316830PHOTO DETECTOR AND METHOD FOR FABRICATING THE SAME - A photo detector is disclosed. The photo detector includes a substrate, a first patterned semiconductor layer, a dielectric layer, a patterned conductive layer, an inter-layer dielectric, a second patterned semiconductor layer, two first electrodes disposed on the inter-layer dielectric and two second electrodes disposed on portions of the second semiconductor layer. The first patterned semiconductor layer having a first doping region and a second doping region is disposed on a transistor region. The dielectric layer is disposed to cover the substrate and the first semiconductor layer, the patterned conductive layer is disposed on the dielectric layer, and the inter-layer dielectric having at least two openings adapted to expose the first doping region and the second doping region is disposed to cover the dielectric layer. The second patterned semiconductor layer is disposed on a photosensitive region and the first electrodes are electrically connected to the first patterned semiconductor layer.12-29-2011
20110316828METHOD AND APPARATUS FOR REDUCING GLARE AND/OR INCREASING PRIVACY OF A SELF-SERVICE DEVICE - A method for minimizing glare and/or increasing privacy for a user of a self-service device is provided. The method may include mechanical means such as a fixed visor and/or hood or a user operated hinged glare reducing overlay screen. The method may further include as using sensors that detect the user's eyes and other sensors to detect a source of light that produces glare. Information from these sensors may be sent to a computer controlled system that operates system of actuators. The actuators are operated by the computer in response to sensor inputs to adjust the screen angle relative the user to minimize glare for that user and/or increase privacy from surreptitiously observing eyes or cameras.12-29-2011
20120044223INPUT-OUTPUT DEVICE AND DRIVING METHOD OF INPUT-OUTPUT DEVICE - It is an object to increase applications. The present invention shows a driving method of an input-output device which provided with an input-output portion including a pixel portion, and a data processing portion including an image processing circuit, a memory circuit storing a plurality of programs, and a CPU. The pixel portion includes display circuits and photodetector circuits. To the display circuits, a display selection signal is input and a display data signal is input in accordance with the display selection signal. The display circuits become a display state in accordance with a datum of the display data signal which is input. The photodetector circuits generate an optical datum corresponding to an illuminance of incident light. In the method, optical data are stored in the memory circuit, the optical data are read as an image datum from the memory circuit by the image processing circuit sequentially, a label is imprinted on an optical datum with a value larger than a value of a reference datum, optical data on each of which the label of the same group is imprinted is counted, and the process performed by a CPU is changed in accordance with the result of count.02-23-2012
20120044222DISPLAY APPARATUS AND METHOD FOR CONTROLLING BACKLIGHT - Provided are a display apparatus and a method for controlling a backlight. A display apparatus including a backlight partitioned into a plurality of sections according to an exemplary embodiment of the present invention includes: an external brightness measurer measuring and providing front brightness values of the display apparatus corresponding to the sections; an image signal analyzer analyzing an inputted image signal and calculating and providing a brightness influence value of each section by adjacent sections; and a control signal corrector converting a source backlight control signal of each section corresponding to the image signal into an intermediate backlight control signal of each section on the basis of the front brightness values and the brightness influence values of the sections and comparing the intermediate backlight control signal with the previous final backlight control signal to generate the current final backlight control signal.02-23-2012
20120001880DISPLAY DEVICE - A display device includes a photosensor in a pixel region (01-05-2012
20120001879BILLBOARD DISPLAY SYSTEM AND METHOD - A billboard display method includes: capturing images of a scene near the screen by a number of cameras, detecting the images from the cameras to determine whether there is a person nearby the screen, detecting the images to determine a relative position of the person to the screen upon the condition that there is a person nearby the screen, and controlling a media to be shown at a corresponding position of the screen according to the relative position of the person to the screen.01-05-2012
20110096047DISPLAY DEVICE AND SEMICONDUCTOR DEVICE - An object is to detect reflected light from an object accurately and to improve accuracy of capturing an image in a photosensor included in a display panel. In the display panel including a photosensor, when an image of an object is captured, light is emitted from a light source to the object and reflected light enters the photosensor. In the case where the incident light is too strong with respect to sensitivity of the photosensor, luminance of the light source is lowered. In the case where the incident light is too weak with respect to sensitivity of the photosensor, the luminance of the light source is increased.04-28-2011
20120007845MULTIPROJECTION DISPLAY SYSTEM AND SCREEN FORMING METHOD - Provided is a multiprojection display system that includes a plurality of cameras configured to capture images of predetermined vertex regions including vertexes of projected images projected from two-dimensional scanning projectors onto a screen, an image-capturing timing control unit configured to control the cameras to capture images of the screen for a predetermine period including a display. start row of one frame of the projected image or a predetermined period including a display end row, and a vertex position detection unit configured to detect vertexes of the respective projected images from data relating to the plurality of images captured by the cameras, and to output data relating to image edges indicating positions of the vertexes. A projector control unit adjusts, when the vertex of the projected image shifts from a present reference position, a scanning range of the two-dimensional scanning projector so that the vertex can be matched with the reference position.01-12-2012
20100156865AUTOMATIC SCREEN AND KEYPAD BRIGHTNESS ADJUSTMENT ON A MOBILE HANDHELD ELECTRONIC DEVICE - A method is set forth for automatically adjusting screen and keypad brightness on a mobile electronic device having a light sensor, display screen and keypad, for optimum legibility under varying lighting conditions, with minimal eye strain and distraction. The method includes obtaining light level samples from the light sensor, and independently adjusting backlight intensity of the display screen and keypad responsive to the light level samples. Preferably, correct screen and keypad adjustments are made responsive to pulling the handheld device out of its holster notwithstanding non-optimal ambient light detection while the device is being removed from the holster. According to another aspect, the described method allows for ambient light detection in a handheld device where the light sensor and a message notification indicator share a common light pipe.06-24-2010
20110018850DISPLAY PANEL WITH BUILT-IN OPTICAL SENSORS AND DISPLAY DEVICE USING SAME - A display panel with built-in optical sensors is provided that can accurately remove a noise component in an imaging signal of an image pick-up sensor in a display region without being influenced by distance from a heat source or distance from a sensor output terminal. The display panel with built-in optical sensors has an active matrix substrate having a pixel region in which pixels are disposed in a matrix, and is configured such that optical sensors are formed in at least a portion of the pixel region. Among the optical sensors in the pixel region are image pick-up sensors (01-27-2011
20110090194PIXEL ARRAY AND DISPLAY PANEL HAVING THE SAME - A pixel array including a plurality of pixel structures is provided. At least one of the pixel structures has a scan line, a data line, an active device, a pixel electrode, a readout line, an electro-magnetic interference (EMI) shielding layer and a sensing device. The scan line and the data line are disposed on a substrate. The active device is electrically connected to the scan line and the data line. The pixel electrode is electrically connected to the active device. The readout line is disposed above or below a data line. The EMI shielding layer covers the data line, and is between the readout line and the data line. The sensing device is electrically connected to the scan line and the readout line.04-21-2011
20120013584Portable Computer Having A Tilt Camera Assembly - Embodiments of the present invention provide a digital camera mount assembly for a portable computer 01-19-2012
20120013583BRIGHTNESS LEVEL ADJUSTMENT OF A LIGHTED DISPLAY DEVICE - A lighted display device that includes a display device, a backlight device and an electrical delay circuit. The backlight device is disposed proximate the display device and configured to emit light directed to the display device. The ambient light sensor is configured to generate a signal to adjust a brightness level of the light from the backlight device based on a change in input ambient light. The electrical delay circuit is configured to apply a fixed, non-user configurable time delay to delay the adjustment of the brightness level of the light from the backlight.01-19-2012
20090179881Color sensor unit for use in display device, color measuring device for use in display device, display system incorporated with color sensor unit, and display calibration method - In a color sensor unit for use in a display device, a color measuring device for use in a display device, a display system and a display calibration method of the invention, a CPU is operable to calculate a luminance value or a chromaticity value substantially equivalent to that to be obtained by a measuring device having a light receiving angle smaller than a light receiving angle of a sensor, by correcting a luminance value or a chromaticity value measured by the sensor based on gradation information from the display device.07-16-2009
20120056862DISPLAY DEVICE AND ELECTRONIC APPARATUS - To provide a display device whose display can be recognized even in dark places or under the strong outside light. The display device performs display by controlling the number of gray scales in accordance with the intensity of outside light, which means a display mode can be switched in accordance with the data to be displayed on the display screen. A video signal generation circuit is controlled in each display mode in such a manner that it directly outputs an input video signal with an analog value, outputs a signal with a binary digital value, or outputs a signal with a multivalued digital value. As a result, gray scales displayed in pixels are timely changed. Accordingly, clear images can be displayed while maintaining high visibility in various environments, in the wide range from, for example, dark places or indoors (e.g., under a fluorescent lighting) to outdoors (e.g., under the sunlight).03-08-2012
20120056861SEMICONDUCTOR DEVICE - The semiconductor device includes a plurality of photosensors arranged in matrix. The photosensors each include a photoelectric conversion element and an amplifier circuit. A backlight is turned on, an object to be detected is irradiated with light, and the photosensor in a p-th row performs the reset operation and the storage operation. After that, the backlight is turned off, and the photosensor in a (p+1)th row performs the reset operation and the storage operation. Then, the photosensors in all the rows sequentially perform the selection operation. A difference between output signals obtained from the photosensors in adjacent rows is obtained. Using the difference, a captured image of the object is generated and a region where the object exists is detected. The amplifier circuit includes a transistor for holding stored electric charge, in which a channel is formed in an oxide semiconductor layer.03-08-2012
20090284505DISPLAY APPARATUS - A display apparatus is provided and includes display cells each having a display circuit, light receiving cells each having a photosensor configured to receive light from an outside, and display signal lines. The display cells and the light receiving cells are arranged in a row direction perpendicular to the display signal lines and in a column direction parallel with the display signal lines. Also, the light receiving cells in each row are displaced in the row direction between every two adjacent rows in a column direction.11-19-2009
20090135167DISPLAY DEVICE AND ELECTRONIC APPARATUS - Disclosed herein is a display device including a first light sensor unit configured to include a light-receiving element and detect intensity of ambient light to a display area; a second light sensor unit configured to include a light-receiving element and be provided with an infrared filter disposed on an optical path to the light-receiving element; and a signal processor configured to execute difference processing for a detection signal of the first light sensor unit and a detection signal of the second light sensor unit, wherein the infrared filter is formed by stacking at least two kinds of color filters.05-28-2009
20120154352DISPLAY APPARATUS - A display apparatus includes: a display panel that includes display elements having a current-driven light-emitting portion and that displays an image on the basis of a video signal; and a luminance correcting unit that corrects the luminance of the display elements when the display panel displays an image by correcting a gradation value of an input signal and outputting the corrected input signal as the video signal. The luminance correcting unit includes an operating time conversion factor holder, a reference operating time calculator, an accumulated reference operating time storage, a reference curve storage, a gradation correction value holder, and a video signal generator.06-21-2012
20120154354PHOTOSENSOR AND DISPLAY DEVICE - By reducing the potential drop of a storage node that occurs due to feedthrough, the capacitance of a storage capacitor is reduced and sensor sensitivity is improved. In a photosensor, the first terminal of a storage capacitor (C06-21-2012
20120026140DISPLAY DEVICE WITH IMAGE CAPTURING FUNCTION - A display device with an image capturing function includes a power supply and a thin film transistor liquid crystal display (TFT-LCD) and a processing unit. The processing unit includes a capturing module and a control module. The capturing module is placed on a back side of the TFT-LCD, and captures images of an object on a front side of the TFT-LCD. The control module is used for controlling the power supply to switch the TFT-LCD between a light permeating state and a light semi-permeating state. The control module is further used for controlling a capturing rate of the capturing module to be at least an integer multiple of a switch rate of the TFT-LCD between the light permeating state and the light semi-permeating state.02-02-2012
20120026139LIGHT FEEDBACK CONTROL SYSTEM FOR A DISPLAY DEVICE AND METHOD FOR FEEDBACK CONTROL - A light feedback control system can obtain a correct light feedback signal for a backlight source by using an optical sensor disposed inside a backlight unit or outside a display device after subtracting the effect of ambient light sensed by the optical sensor when a backlight element is turned off. The optical sensor senses light intensity and the ambient light source at a double frequency of the frequency at which a backlight element emits light. The light feedback control system may further control the ambient light source and the backlight element, driving them to illuminate alternately, while the optical sensor synchronizes with the backlight element and senses light signals of the backlight element. Accordingly, exact information about the light intensity or color of the backlight element can be obtained for feedback control of the display device.02-02-2012
20120206427LIGHT SOURCE DRIVING DEVICE, LIGHT SOURCE DRIVING METHOD, AND IMAGE DISPLAY DEVICE - A switching power source for driving a light emitting element, a pulse-drive switching element connected in parallel to the light emitting element, a photodetector for detecting an intensity of an output light output from the light emitting element, a current detecting element for detecting a current flowing from the switching power source, and an operation processing unit that controls an operation of the switching power source by performing a feedback loop operation based on a detection result from the photodetector and a feedback loop operation based on a detection result from the current detecting element are provided to stabilize an emission waveform even when the light emitting element is subjected to a pulsed emission.08-16-2012
20120206426IMAGE DISPLAY APPARATUS AND CONTROL METHOD THEREOF - An image display apparatus, comprises a display unit; a luminance sensor arranged in plural portions of the display unit, each luminance sensor having temperature characteristics; a temperature sensor arranged in plural portions of the display unit; an acquisition control unit configured to acquire a temperature value from the temperature sensor and a luminance value from the luminance sensor; a determination unit configured to determine a frequency for acquiring the temperature value from the temperature sensor based on an orientation of the display unit or a display setting; a correction unit configured to correct the luminance value acquired from the luminance sensor by using the temperature value acquired from the temperature sensor; and an image processing unit configured to control luminance of the display unit by using the luminance value corrected by the correction unit as a target luminance value.08-16-2012
20120154355IMAGE DISPLAY APPARATUS - An image display apparatus is provided that avoids discontinuity in a high luminance and gradation range and is capable of displaying gradations where differences in sense of luminance change at equal intervals from an intermediate gradation range to the maximum value of the gradations. A gradation/light emission luminance converter 06-21-2012
20120154353MATRIX SUBSTRATE, DETECTION DEVICE, DETECTION SYSTEM, AND METHOD FOR DRIVING DETECTION DEVICE - A matrix substrate which realizes high operation speed and high reliability and which is capable of obtaining a high-quality image while the number of connection terminals is limited is provided. The matrix substrate includes pixels arranged in a matrix, N driving lines arranged in a row direction, P connection terminals where P is less than N, a demultiplexer which is disposed between the connection terminals and the driving lines and which includes first polycrystalline semiconductor TFTs and first connection terminals. The demultiplexer further includes second polycrystalline semiconductor TFTs and the second control lines used to maintain the driving lines to have non-selection voltages which bring the pixels to non-selection states between one of the connection terminals and two or more of the driving lines.06-21-2012
20120154351METHODS AND APPARATUS TO DETECT AN OPERATING STATE OF A DISPLAY BASED ON VISIBLE LIGHT - Methods and apparatus to infer operating states of a display based on visible light are disclosed. An example device includes an optical receiver to be positioned with respect to a display to receive visible light from the display. The example device includes a sensor to measure a color and an intensity of the visible light received. The example device includes an operating state detector to analyze the measured intensity and color of the visible light detected by the sensor to generate an output indicative of an operating state of the display.06-21-2012
20110090193DISPLAY DEVICE AND METHOD FOR DRIVING DISPLAY DEVICE - A matrix type display device including: a photosensor, provided in a display region, for outputting a signal corresponding to an intensity of light emitted to the photosensor; a TFT of n-channel type, the TFT serving as a source follower including a gate to which the signal is inputted; and light intensity detecting means for detecting the intensity of the light by detecting an output of the source follower, which is the TFT. In at least one embodiment, the TFT includes a drain to which a first pulse signal (Vpulse04-21-2011
20110090192Projected Display - A reprojection system which allows a projection to be displayed onto a display screen, and reprojected by that display screen. The display is received on the surface that itself displays, and it is then redisplayed on the surface. The redisplay can be at the same size or at a different size as the original projection. Preferably the redisplay is at the same relative intensity but a brighter actual intensity than the original display. The information is can be received and redisplayed in a number of different ways.04-21-2011
20110102392DISPLAY DEVICE - A liquid crystal display device (05-05-2011
20110102391ILLUMINATION SENSING DEVICE HAVING A REFERENCE VOLTAGE SETTING APPARATUS AND A DISPLAY DEVICE INCLUDING THE ILLUMINATION SENSING DEVICE - A reference voltage setting apparatus including: a current generator having a first device to supply a first dark current and a second device to supply a second dark current; a first operational amplifying unit connected to the current generator; and a voltage setting unit connected to the first operational amplifying unit and setting a reference voltage having a compensated offset voltage of the first operational amplifying unit, and an illumination sensing device and a display device including the reference voltage setting apparatus.05-05-2011
20110102390DISPLAY DEVICE AND METHOD OF CONTROLLING DISPLAY DEVICE - A display device includes a flexible substrate, a display unit that has a plurality of light-emitting elements arranged on the substrate and displays an image according to an image signal, a displacement sensor that is disposed on a front surface or a back surface of the substrate and detects a state of a curve of the substrate, a light-receiving unit that is disposed on a plane of the substrate on which the display unit is disposed and detects the amount of light, and a signal control unit that controls an image signal for displaying the image based on the amount of light when the displacement sensor detects the curve of the substrate.05-05-2011
20120313908DEVICE AND METHOD OF ADJUSTING ELECTROMAGNETIC RADIATION TRANSMITTED BY AN OPTICAL ELEMENT - A method of adjusting electromagnetic radiation transmitted by an optical element is described. The method includes sensing the electromagnetic radiation transmitted by the optical element to produce sensed electromagnetic radiation information, and adjusting the sensed electromagnetic radiation information to produce adjusted electromagnetic radiation information based on the a spectral transmission of the optical element.12-13-2012
20120313911AMBIENT LIGHT CALIBRATION FOR ENERGY EFFICIENCY IN DISPLAY SYSTEMS - A method, system, and apparatus that can be used to operate a display device in an energy efficient manner. The energy efficient display device can effectively and efficiently compensate for changes in ambient light incident at a display screen of the display device using an internal ambient light sensor to provide control signals to a backlight driver.12-13-2012
20120120037DISPLAY DEVICE - Provided is a display device. The display device includes a display module on which a lighting source for supplying light is disposed on a back surface thereof, an optical sensor detecting luminance of the light supplied from the lighting source, and a light transmission member disposed between the lighting source and the optical sensor, the light transmission member providing a transmission path of the light generated in the lighting source to transmit the light into the optical sensor.05-17-2012
20120162166DISPLAY APPARATUS AND AUTOMATIC ADJUSTMENT METHOD THEREOF - A display apparatus includes a photoelectric sensor disposed on an inner side of a frame and located corresponding to a corner of a pixel area of a display panel in a predetermined position. When the display apparatus is turned on, the display panel provides a light spot at a corner of a current pixel area of the display apparatus corresponding to the photoelectric sensor, and a micro-control circuit compares an electronic signal received from the photoelectric sensor with a sample value. If different, an interrupt is triggered to execute a position offsetting interrupt program to adjust the display parameter of the display apparatus, thereby moving the pixel area to adjust the relative position of the light spot and the photoelectric sensor, so that the relative position becomes identical to that when the pixel area of the display panel is in the predetermined position.06-28-2012
20100289782Pixel circuit, display apparatus, and driving method for pixel circuit - A pixel circuit includes: a light emitting element; a driving transistor for applying current to the light emitting element in response to a signal value applied between a gate and a source thereof when a driving voltage is applied between a drain and the source thereof; first and second capacitors connected in series between the gate and the source of the driving transistor; a sampling transistor connected between the gate of the driving transistor and a predetermined signal line; a switching transistor connected to supply a potential of the signal line to a node between the first and second capacitors; and a light detection element connected between the gate of the driving transistor and the node between the first and second capacitors for supplying current of a current amount in accordance with an emitted light amount of the light emitting element.11-18-2010
20100245309DISPLAY DEVICE AND ELECTRONIC APPARATUS COMPRISING THE SAME - A display device and an electronic apparatus comprising the same are disclosed. The display apparatus includes a photo-sensor for detecting ambient light and outputting a photocurrent according to the intensity of the ambient light, wherein the display apparatus comprises a current sampling unit and a light detection control unit. The current sampling unit is configured to sample the photocurrent outputted from the photo-sensor and to output a plurality of sampling signals to indicate the magnitude of the photocurrent. The light detection control unit is configured to determine an average of the sampling signals outputted from the current sampling unit. The current sampling unit starts a next sampling period corresponding to the end of one of the sampling signals.09-30-2010
20100245310LUMINANCE CONTROL METHOD AND DISPLAY - A display device includes a display panel, a light emitting device that provides backlight to the display panel, and a control device that determines the brightness of the backlight that the light emitting device should provide. The control device detects a timing when the brightness of the backlight illuminating the display panel is switched; recognizes an updated brightness level that should replace, as the one to be applied, an initial brightness level representing the brightness of the backlight at the detection timing; and changes the brightness of the backlight step by step after the detection timing from the initial brightness level to the updated brightness level.09-30-2010
20120127141DISPLAY DEVICE - A display device having an infrared receiver module. The display device includes a display part on which an image is displayed, a bezel part formed along an outer edge of the display part, an infrared receiving part provided on the bezel part, and the infrared receiver module disposed at a rear surface of the infrared receiving part and including an infrared sensor to receive an infrared signal and a plate-shaped printed circuit board on which the infrared sensor is mounted, and a distance from the outer edge of a side surface of the display part to a most distant portion of the infrared receiver module mounted on the printed circuit board in the sideward direction is shorter than a length from the outer edge of the side surface of the display part to a most distant portion of the printed circuit board.05-24-2012
20120127140MULTI-MODE LIQUID CRYSTAL DISPLAY WITH AUXILIARY NON-DISPLAY COMPONENTS - A liquid crystal display, alone or in combination with any kind of computing device, may comprise a plurality of pixels, each pixel comprising a plurality of sub-pixels, each sub-pixel comprising a transmissive part and a reflective part, wherein a cross sectional area of the reflective part is greater than half of a total cross sectional area of an entire size of that sub-pixel; one or more auxiliary components that are in a non-transmissive part of the sub-pixel and that are configured to provide one or more auxiliary functions that do not affect optical performance of that sub-pixel. In various embodiments the auxiliary components are electronic digital memory logic or drivers; electronic high refresh rate logic or drivers; touch sensor elements, and the display further comprising a touch panel sheet over the pixels; light sensors; photodiodes; photovoltaic solar power generating cells; organic light emitting diodes.05-24-2012
20120162168METHOD OF SETTING GAMMA OF DISPLAY DEVICE - A method of setting gamma of a display device comprises: sensing an optical characteristic from a display module; comparing a color coordinate the sensing of an optical characteristic and a target color coordinate and determining a fluctuation value of R gamma and a fluctuation value of G gamma; determining whether the fluctuation value of R gamma and the fluctuation value of G gamma determined at the determining of a fluctuation value satisfy an allowable error; first correcting of correcting the fluctuation value of R gamma and the fluctuation value of G gamma and lowering or raising according to the fluctuation values of R, G and B gamma; second correcting of lowering or raising according to the fluctuation values of a corrected R, G and B gamma; and applying R gamma, G gamma, and B gamma corrected at the second correcting to the display module.06-28-2012
20120162169ACTIVE MATRIX TYPE ORGANIC EL DISPLAY DEVICE AND ITS DRIVING METHOD - To control a chronological luminance decrease of an organic EL element in an active matrix drive type organic EL display and to provide a reliable organic EL display. An organic EL display comprising a luminance decrease detector to detect a luminance decrease of an organic EL element; a reverse bias voltage generator to generate a reverse bias voltage pulse according to an amount of the luminance decrease; and a controller to control applying the above reverse bias voltage pulse to a driving transistor in a time period in which the organic EL element emits no light.06-28-2012
20120162167METHOD FOR DRIVING SEMICONDUCTOR DEVICE - To shorten a period necessary for a plurality of photosensors arranged in a display and data input region to receive light. In a first period, a reset operation is concurrently performed and then a storage operation is concurrently performed in a plurality of first photosensors while a plurality of first light-emitting elements emit light concurrently and a plurality of second light-emitting elements do not emit light. In a second period, the reset operation is concurrently performed and then the storage operation is concurrently performed in a plurality of second photosensors while the plurality of second light-emitting elements emit light concurrently and the plurality of first light-emitting elements do not emit light. In a third period, a selection operation is sequentially performed in the plurality of first photosensors and the selection operation is sequentially performed in the plurality of second photosensors.06-28-2012
20120212466DISPLAY DEVICE - A display device (liquid crystal display device 08-23-2012
20120299891LIGHT EMITTING DEVICE FOR IMAGE DISPLAY, AND IMAGE DISPLAY DEVICE - The light emitting device is divided into a plurality of areas, and has, as main configuration elements, an area drive circuit (11-29-2012
20110181568DISPLAY DEVICE - Outside provision of first row lines (CS(07-28-2011
20110181567BRIGHTNESS CORRECTION DEVICE AND BRIGHTNESS CORRECTION METHOD - An illumination controller determines a target brightness setting value from a illuminance value measured by a illumination sensor, determines a brightness correction start time in response to a target brightness setting value and a current brightness setting value and a calculation information that are stored in a memory, calculates an amount of brightness setting change per specified time from the current brightness setting value stored in the memory and the target brightness setting value at a brightness correction start time, and outputs an output brightness setting value in response to the amount of brightness setting change that is calculated. The brightness controller adjusts brightness of the display unit in response to the output brightness setting value output from the illumination controller.07-28-2011
20110181565MULTI-SCREEN DISPLAY DEVICE - There has been a problem of displacement of luminance and chromaticity among multiple screens due to a temperature change and a temporal change of a light source of the screen. The present invention provides a multi-screen display device including a plurality of image display devices, in which one master device and one or a plurality of slave devices communicable with the master device are included, each of the image display devices is provided with a DMD that modulates light of a light source, a screen that projects an image by modulated output light of the DMD, and an RGB luminance sensor that detects luminance of light from the DMD in an off-state, to output a luminance detection value, the master device is provided with a setting part that sets a luminance setting value unified among the plurality of image display devices based on a value in accordance with the luminance detection values, and each image display device is further provided with a luminance/chromaticity corrector that controls luminance/chromaticity of an image displayed on the screen based on the luminance setting value.07-28-2011
20120299890BALANCED LED BACKLIGHTING FOR LIQUID CRYSTAL DISPLAY (LCD) - Techniques for providing LED-based backlighting in liquid crystal flat panel displays are disclosed. In one embodiment, optical sensors are provided to sense illuminations from colored LED groups and provide feedback signals to a controller so that a desired ratio of the illuminations is maintained. As a result, true colors could be reproduced regardless of possible irregularities that may be happening to LEDs used in the colored LED groups to backlight an LCD panel.11-29-2012
20120212467DISPLAY DEVICE - A display device (liquid crystal display device 08-23-2012
20120133624DISPLAY PANEL - A display panel incorporates the functionality to determine the three dimensional position of a light reflecting or emitting object (05-31-2012
20120133623ELECTRONIC SHELF LABEL APPARATUS FOR SWITCHING IMAGES AND METHOD THEREOF - There is provided an electronic shelf label including an image display unit displaying a first image; a sensor unit detecting image switching signals; and a processor unit determining whether the image switching signals detected by the sensor unit are valid and switching the first image displayed on the image display unit to a second image when the image switching signals are valid, and a communication unit receiving a plurality of image data displayed on the image display unit. The processor unit determines that the image switching signals are valid when a detection duration time of the image switching signals is longer than a predetermined first threshold time. By this configuration, the electronic shelf label can switch a plurality of images and reduce the influence of disturbance to thereby prevent unnecessary image switching. Further, the electronic shelf label can provide product-related information for a manager or the like as well as for a purchaser.05-31-2012
20100177077HIGH-LUMINANCE FRONTLIGHT ASSEMBLY AND RELATED DISPLAY SYSTEMS - Systems and apparatus are provided for viewing a display element configured to reflect light rays incident on a surface of the display element. A microdisplay system comprises a display element having a reflective surface and a polarizer configured to absorb light rays of a first polarization and transmit light rays of a second polarization orthogonal to the first polarization. A light deflection element is disposed between the reflective surface of the display element and the polarizer, and a light source is disposed adjacent to the light deflection element. The light source is configured to produce light rays, wherein the light deflection element deflects light rays from the light source having the first polarization toward the reflective surface of display element and transmits light rays reflected from the display element having the second polarization.07-15-2010
20120249504DISPLAY DEVICE HAVING REDUCED REFLECTION OF VISIBLE LIGHT - A display device includes a display panel, a polarization film, and a wave plate. Below the wave plate and the polarization film there is provided a plurality of optical sensors disposed within the display panel. The display panel includes first and second substrates facing each other and a plurality of pixels configured to display an image. The optical sensors are configured to sense light in one or more predetermined light bands. The wave plate is configured to rotate polarization of first light that has passed upwardly through the polarization film such that the combination of upward and downward (reflected) passage of the light is rotated by about 90 degrees. The so-rotated light is blocked from passing down through the polarization film; advantageously, the so-rotated light is prevented from interfering with the optical sensors.10-04-2012
20100060620Display System and Electrical Appliance - A display system in which the luminance of light-emitting elements in a light-emitting device is adjusted based on information on an environment. A sensor obtains information on an environment as an electrical signal. A CPU converts, based on comparison data set in advance, the information signal into a correction signal for correcting the luminance of EL elements. Upon receiving this correction signal, a voltage changer applies a predetermined corrected potential to the EL elements. Thus, this display system enables control of the luminance of the EL elements.03-11-2010
20090128530AMBIENT LIGHT DEPENDENT THEMES - A portable electronic device may include a display for displaying an image having different color or grey scale fields. Neighboring fields in the image may have different luminance. The portable electronic device may also include an ambient light detecting unit and a control unit. The control unit receives a luminance value corresponding to detected ambient light from the ambient light detecting unit, compares the luminance value with an ambient light level threshold and increases the difference in luminance between neighboring fields of an image being displayed by the display when the luminance exceeds the ambient light level threshold.05-21-2009
20120176357DISPLAY DEVICE - A plurality of first and second sensor pixel circuits each sensing light during a designated sensing period and retaining the amount of sensed light otherwise are arranged in a pixel region. A backlight is turned on once for a predetermined time in one-frame period. A sensing period when the backlight is turned on and a sensing period when the backlight is turned off are set once, respectively, in the one-frame period. The first sensor pixel circuit is reset. The second sensor pixel circuit is reset. Read from sensor pixel circuits of two types is performed in parallel in a line sequential manner during a period other than the periods and. A difference circuit provided outside of the sensor pixel circuits is used for obtaining a difference between an amount of light when the backlight is turned on and an amount of light when the backlight is turned off.07-12-2012
20120176355Display Device - A plurality of first sensor pixel circuits each sensing light during a sensing period when a backlight is turned on and retaining the amount of sensed light otherwise in accordance with a clock signal and a plurality of second sensor pixel circuits each sensing light during a sensing period when the backlight is turned off and retaining the amount of sensed light otherwise in accordance with a clock signal are arranged in a pixel region. The sensor pixel circuits of two types are connected to different output lines, so that a difference between two output signals is obtained at the outside of the sensor pixel circuit. The sensor pixel circuits described above are used for detecting a difference between an amount of light to be incident when the backlight is turned on and an amount of light to be incident when the backlight is turned off.07-12-2012
20120313909DISPLAY APPARATUS - A display apparatus includes: a light emitting unit which emits light; a light scanning unit which includes a light reflector reflecting light emitted from the light emitting unit and being swingably installed around a swing axis and scans the light reflected by the light reflector on a display surface where an image is to be displayed in a first direction and a second direction perpendicular to the first direction; and an amplitude changing unit which changes an amplitude of the swing of the light reflector, in which the amplitude changing unit changes the amplitude of the swing of the light reflector, so that a first state where the light is scanned in a first region of the display surface and a second state where the light is scanned on the first region and a second region different from the first region of the display surface is switched over each other.12-13-2012
20120176358DISPLAY DEVICE, COMPUTER PROGRAM, STORAGE MEDIUM, AND IMAGE DISPLAYING METHOD - Provided are a display device, a computer program, a storage medium, and an image displaying method, which are capable of adjusting a light intensity of a display panel without using a photometric image. An optical sensor 07-12-2012
20120075274Display Device And Display Control Method - A display device includes: an LED control section (03-29-2012
20100271356DISPLAY DEVICE, DISPLAY METHOD, AND PROGRAM - A display device includes a display unit, a display control unit, and a control unit. The display unit includes a first and second glass plates, each formed with an electrode connected to a power supply and configured to transmit a light, and a light dispersing element sealed between the first and the second glass plates. The light dispersing element transmits the light when a voltage from the power supply is turned on, and disperses the light when the voltage is turned off. The display control unit controls a timing of turning the voltage on or off, or switching the voltage between positive and negative when the voltage is turned on. The control unit instructs the display control unit to set a display frame rate to a predetermined value during a standby mode, and set it higher than the predetermined value during an information display mode.10-28-2010
20100271355INTELLIGENT DIGITAL PHOTO FRAME - A digital photo frame (DPF) includes a power management unit connected to a power source, configured for distributing power from the power source to the DPF; a display panel configured for displaying displayable media; a receiver configured for detecting whether there is a remote signal within a predetermined area generated by a remote controller and producing a trigger signal when having detected the remote signal; a light detector configured for detecting current ambient light level and producing a light signal corresponding to the detected ambient light level; and a processing unit configured for adjusting brightness of the display panel according to the trigger signal and the light signal.10-28-2010
20100007638MOBILE ELECTRONIC DEVICE HAVING A GEOGRAPHICAL POSITION DEPENDENT LIGHT AND METHOD OF AND SYSTEM FOR ACHIEVING THE SAME - The present invention provides a method and system for controlling an illuminating device on a mobile electronic device comprising determining in a global position of the device in real-time, determining a state of at least one light condition currently affecting ambient light at the global position and adjusting the intensity of the illuminating device in response to the state of the at least one light condition. Light conditions include weather conditions and a position of the sun at a particular global position. A mobile electronic device having a geographically dependent illuminating device is also provided.01-14-2010
20120313913DISPLAY DEVICE - Detection signals of respective photo sensor circuits (senS, senD, senON, and senOFF) are activated so as to be output at once for each group of prescribed plural number of sensor rows (LSk) by a row driver (12-13-2012
20120313910PROJECTION TYPE IMAGE DISPLAY DEVICE - A projecting unit which projects image light based on an inputted image signal to a projection surface. An invisible light emitter is provided such that an irradiation area of invisible light includes a predetermined region. An image pickup unit receives at least one of a plurality of color lights constituting the image light as well as the invisible light, and which picks up an image of the projection surface to generate a pickup image. An object detector detects at least one of a position and a behavior of an object that has come into the predetermined region based on the pickup image. A display controller changes the projected image based on at least one of the position and the behavior of the object detected by the object detector.12-13-2012
20120313912DISPLAY DEVICE WITH LIGHT SENSOR - Disclosed is a liquid crystal display device including a liquid crystal panel 12-13-2012
20120256892MULTI-MODE DISPLAY DEVICE AND POWER-SAVING METHOD OF THE SAME - A power-saving method adapted in a multi-mode display device is provided. The power-saving method comprises the steps as follows. A brightness of an ambient light is detected. When the brightness of the ambient light lies within a transmissive range, the multi-mode display device is operated in a transmissive mode and enables the backlight module of the multi-mode display. When the brightness of the ambient light lies within a transflective range, the multi-mode display device is operated in a transflective mode and the brightness of the backlight module is dynamically adjusted according to a compensation method. When the brightness of the ambient light lies within a reflective range, the multi-mode display device is operated in a reflective mode and turns off the backlight module.10-11-2012
20120188212DISPLAY APPARATUS - Provided is a display apparatus wherein a sustain capacitance wire is shared between two rows of pixels to prevent the reduction in aperture ratio and the reduction in yield, and further the capacitive coupling drive can be performed. The display apparatus comprises: pixels arranged in a matrix of n rows and m columns (where n and m represent integers equal to or greater than two); m source lines and n gate lines provided in a grid pattern; and a sustain capacitance unit formed in a boundary area between odd-numbered and even-numbered rows of pixels. The sustain capacitance unit comprises: a sustain capacitance wire shared between the odd-numbered and even-numbered rows of pixels; an insulating film; an opposite electrode used for the odd-numbered row of pixels; and an opposite electrode used for the even-numbered row of pixels. The odd-numbered row of pixels each have a pixel electrode electrically connected to the opposite electrode used for the odd-numbered row of pixels, and the even-numbered row of pixels each have a pixel electrode electrically connected to the opposite electrode used for the even-numbered row of pixels. The polarity of the potential of the pixel electrode is reversed for every two rows of pixels sharing the sustain capacitance wire, while the potential of the sustain capacitance wire is varied to vary the potentials of the pixel electrodes of the two rows of pixels, thereby performing the capacitive coupling drive.07-26-2012
20120081342DRIVING CIRCUIT AND DRIVING METHOD THEREOF AND LIQUID CRYSTAL DISPLAY - A driving circuit for a liquid crystal display comprises a light sensitive element configured to be arranged on a liquid crystal panel of the liquid crystal display, and detect an operation state of a backlight source of the liquid crystal display; and a reset signal output device configured to receive an input signal from the light sensitive element in accordance with the operation state of the backlight source, and output a reset signal to a gate line driver of the liquid crystal display so as to turn on all of gate lines on the liquid crystal panel.04-05-2012
20120081341REDUNDANT POWER/CONTROL SYSTEM FOR LIQUID CRYSTAL DISPLAYS - A system for powering and controlling an LED-backlit liquid crystal display (LCD) where redundancy is used to provide two independent paths from a pair of power supplies to the LED backlight. Further, two independent paths are also used from a pair of power supplies to the LCD. If any one of the paths were to fail or begin to degrade in performance, the system contains monitoring circuits which can direct another path to be used by the system. Two separate control circuits for the LCD may be used so that either one may be used to control the LCD if one were to fail. Two separate temperature sensors and luminance sensors may also be used to increase the durability of the system.04-05-2012
20120229435DISPLAY DEVICE AND ELECTRONIC DEVICE - A display device includes a display module including a display screen and displaying an image on the display screen; a chassis containing the display module, exposing the display screen, and holding the display screen so as to stand the display screen; a light receiving window disposed on a first part on the chassis, the first part being adjacent to a second part where the display screen is exposed, shifted toward a back side from a surface of the chassis on a periphery of the second part, and receiving incident light from outside of the chassis into the chassis; and an illumination sensor contained in the chassis, detecting illuminance of incident light through the light receiving window, and having an illuminance detection range having a center line extending in a direction inclined downward from a direction of a normal line of the display screen.09-13-2012
20100321356THIN-FILM TRANSISTOR, PHOTODETECTOR CIRCUIT INCLUDING THE SAME, AND DISPLAY DEVICE - A thin-film transistor (12-23-2010
20110122110DISPLAY APPARATUS AND METHOD FOR DRIVING DISPLAY PANEL - A difference between the black level potential V05-26-2011
20110122109REFLECTIVE DISPLAY DEVICE AND CONTROL CIRCUIT FOR REFLECTIVE DISPLAY DEVICE - There is provided a reflective display device that includes an illuminance detector configured to detect illuminance, a chroma corrector configured to correct chroma of image data in accordance with the illuminance detected by the illuminance detector, and a display element configured to display image data corrected by the chroma corrector.05-26-2011
20110122108Semiconductor device and display device - It is an object to perform imaging a high-resolution image in a display device including a photosensor regardless of the intensity of incident light on the photosensor. A display device including a display panel which is provided a photosensor and having a function of imaging by a change of the sensitivity of the photosensor in accordance with the incident light is provided. The sensitivity of the photosensor is improved when the intensity of the incident light is low, so that the imaging accuracy is improved; therefore, misperception of contact is prevented and an obtained image can be clear.05-26-2011
20110122107Portable electronic display apparatus, control method of portable electronic display apparatus and control program of portable electronic display apparatus - A portable electronic display apparatus includes at least two screen units whose intersecting angle is changeable; an inclination detecting device, which are mounted on each of the screen units, for detecting inclination with the ground; a watched screen detecting device for detecting a screen unit which user watches through comparing the inclination values of the screen units each other; and a screen display controlling device for carrying out a page turning in the case that the watched screen detecting device detects that a screen unit which user watches is switched over and judges that a predetermined page turning executing condition is satisfied.05-26-2011
20100328284ELECTRONIC APPARATUS - An electronic apparatus includes, a power consuming unit that consumes electric power with operation of the electronic apparatus, a detection unit for detecting illumination intensity of light in an environment where the electronic apparatus is located, and a change unit that changes an operating state of the power consuming unit from a first state to a second state when an amount of change in the illumination intensity that is calculated from the illumination intensity detected by the detection unit, is equal to or larger than a predetermined threshold.12-30-2010
20130169606LIGHT DIRECTION DISTRIBUTION SENSOR - This disclosure provides systems, methods and apparatus for measuring the direction distribution of light. In some implementations, an ambient light direction distribution sensor device can include, for example, a light steering layer that is designed to steer light from different incident angles toward associated locations on a light detector. The light detector can then output one or more signals that are indicative of the amount of light that is incident upon the sensor device from different incident angles. These measurements can be used to control various parameters of a display in response to the detected ambient lighting conditions.07-04-2013
20120262434IMAGE DISPLAY APPARATUS AND METHOD FOR CONTROLLING THEREOF - A selected divided light-emitting region, from a plurality of divided light-emitting regions, emits light in a light emitting unit and adjusts the light emission amount for each of the plurality of divided light-emitting regions based on the light emission amount detected by a detection unit.10-18-2012
20110032230CONTROL DEVICE AND CONTROL METHOD FOR IMAGE DISPLAY - A control device for an image display includes at least two reference points, a modulation unit and a remote controller. The modulation unit modulates the light of a predetermined spectrum generated by the reference points with a brightness variation cycle. The modulation unit controls the reference points to emit the light with a first brightness within a first period of the brightness variation cycle and to emit the light with a second brightness within a second period of the brightness variation cycle, wherein the first brightness and the second brightness are not zero gray level. The remote controller captures the light of the predetermined spectrum with a sampling cycle and demodulates an image variation of the reference points with respect to the remote controller. The present invention further provides a control method for an image display.02-10-2011
20110032227ELECTRONIC BOOK - An object is to improve visibility without causing increases in device size and cost. Another object is to improve visibility and reduce the burden on a user without blocking external light when reflection of external light is high. An electronic book includes a display panel having an electrophoretic display element controllable by a pixel circuit of each pixel, and an illuminance sensor, and a display control portion having a circuit configured to correct an image signal for the electrophoretic display element to display a grayscale image in accordance with illuminance that is detected by the illuminance sensor.02-10-2011
20120268439Display Device - A plurality of sensor pixel circuits are disclosed, each including one photodiode, one accumulation node accumulating charge corresponding to an amount of light, a read transistor having a control terminal connected to the accumulation node, and transistors turning on or off in accordance with a clock signal, and switching a path for a current flowing through the photodiode are arranged in a pixel region. In accordance with the clock signal, when a backlight is turned on, a current flows out of the accumulation node, and a potential at the accumulation node drops. When the backlight is turned off, a current flows into the accumulation node, and the potential at the accumulation node rises.10-25-2012
20120268436DISPLAY DEVICE AND METHOD FOR ADJUSTING GRAY-LEVEL OF IMAGE FRAME DEPENDING ON ENVIRONMENT ILLUMINATION - A display apparatus and method for adjusting the gray level depending on environment illumination is used to adjust the average-gray-level of an image frame with a plurality of pixels. The display device includes a display-panel, an optical-sensor, a controller, and an adjusting module. The display-panel displays the image frame with the plurality of pixels. The optical-sensor is used to obtain the environment illumination. The controller is used to drive the display-panel to display the image frame. The adjusting module is used to adjust gray-levels of the pixels according to the environment illumination. When the environment illumination is too high, the adjusting module raises the gray-level of partial or all pixels; and when the environment illumination is too low, the adjusting module reduces the gray-level of partial or all pixels; so that visual effect of the display device is enhanced.10-25-2012
20120268437IMAGE DISPLAY DEVICE AND COLOR CORRECTION METHOD USED BY THE SAME - Embodiments may be directed to an image display device and a color correction method. An image display device may include a display unit displaying an image according to an image signal; a sensor unit measuring a spectrum of external light incident on the display unit; and a correction signal providing unit estimating an adapted primary color spectrum perceived by a viewer using spectral reflectivity of the display unit, a maximum level primary color spectrum of the display unit, and the spectrum of external light, and providing a correction signal for correcting the image signal based on the adapted primary color spectrum.10-25-2012
20120268438DISPLAY WITH A REFLECTIVE LC PANEL, AND THE DISPLAY METHOD - A display includes a reflective Liquid Crystal (LC) panel having an LC layer, an optical unit having a light source, and a transmission plate unit stacked on the reflective LC panel. The transmission plate unit includes a first transmission plate and a second transmission plate that have respective and different indexes of refraction. Light incident on a first side of the first transmission plate is totally internally-reflected by a boundary between the first transmission plate and the second transmission plate, and travels through the first transmission plate to the reflective LC panel. The LC layer of the reflective LC panel reflects the incident light of spectra corresponding to pixel signals in order to display a video.10-25-2012
20110227888FLAT PANEL DISPLAY - A flat panel display including a first substrate comprising an emission region and a non-emission region, a light emission unit on the emission region, a first sensing unit on the non-emission region, and a second sensing unit on the non-emission region, wherein the first and second sensing units are arranged to allow determination of a tilt angle of the flat panel display using light intensities measured by the first and second sensing units.09-22-2011
20120320015PLASMA DISPLAY DEVICE AND PLASMA DISPLAY SYSTEM - In a plasma display apparatus usable as a 3D image display apparatus, crosstalk is reduced to the user who views a 3D image displayed on the plasma display panel through a pair of shutter glasses. For this purpose, in a plasma display system, in each of fields for the right eye and fields for the left eye, luminance weights are set such that the first subfield in the one field has the heaviest luminance weight and those thereafter have luminance weights sequentially decreasing. A pair of shutter glasses is controlled in the following manner. The right eye shutter opens before the sustain period of the subfield where an address operation is performed first in the field for the right eye. The left eye shutter opens before the sustain period of the subfield where an address operation is performed first in the field for the left eye.12-20-2012
20100231563Display Characteristic Feedback Loop - A system and method for maintaining similar optical performance over two electronic displays. A color light sensor is placed in front of the viewable area of each electronic display and is used to measure one or more optical properties in order to balance the two (or more) electronic displays. The user may be notified when a display is malfunctioning or the displays are not performing within acceptable ranges. The display may store optical data locally for later retrieval by the user. The user may access the optical data through a network connection with the display. One or more displays may be placed adjacent to one another and their optical properties may be measured and balanced so that the displays match one another or can be used as a harmonious array.09-16-2010
20100231562COMBINED IMAGE SENSOR AND DISPLAY DEVICE - A combined image sensor and display device comprises an array of device elements (09-16-2010
20110248974BACKLIGHT DRIVE DEVICE AND DISPLAY DEVICE HAVING SAME - Backlight drive units included in a backlight drive device of at least one embodiment of the present invention each have a plurality of metal pads functioning as a plurality of address setting terminals. To provide a potential for setting a unique address by coming into contact with the metal pads, metal protrusions are provided at corresponding locations of a backlight housing. A backlight drive control unit is directly connected to each unit through an IIC bus by a bus scheme and receives, via the IIC bus, a detected amount of light and temperature from each unit identified by the address. With such a simple configuration, a unique address can be automatically set for each unit, obtaining the commonization of backlight drive units.10-13-2011
20120320014System and Method for Adjusting Display Based on Detected Environment - In one embodiment the present invention includes a method that adjusts a display device according to a display environment. The method includes sensing the display environment of the display device and generating environment data that corresponds to the display environment. The environment data includes color data. The method further includes adjusting a color appearance model according to the color data, generating a control signal according to the color appearance model having been adjusted, and controlling a backlight of the display device according to the control signal. In this manner, a viewer perceives the images displayed by the display device in the manner intended by the content creator, because the adjustments to the color appearance model compensate for the viewer's physiological response to the display environment.12-20-2012
20120327052LED ARRAY WITH PHOTODETECTOR - Embodiments of the present invention provide for an array, and corresponding method of forming an array, that includes a plurality of light emitting devices. The light emitting devices are disposed over a substrate, and a photodetector detects light emitted through the substrate from the light emitting devices. Further, a substantially constant brightness may be maintained in a plurality of light emitting devices disposed over the upper surface of a substrate in an array. Light emitted through the substrate from each of the light emitting devices is measured, and the voltage level applied to each of the light emitting devices is varied to maintain a substantially constant brightness level of light emitted from the light emitting devices.12-27-2012
20120320013SHARING OF EVENT MEDIA STREAMS - Embodiments are disclosed that relate to sharing media streams capturing different perspectives of an event. For example, one embodiment provides, on a computing device, a method including storing an event definition for an event, receiving from each capture device of a plurality of capture devices a request to share a media stream provided by the capture device, receiving a media stream from each capture device of the plurality of capture devices, and associating a subset of media streams from the plurality of capture devices with the event based upon the event definition. The method further includes receiving a request for transmission of a selected media stream associated with the event, and sending the selected media stream associated with the event to the requesting capture device.12-20-2012
20120092315METHOD AND DEVICE FOR DETERMINING A CONTROL SIGNAL - In a method for determining a control signal as a function of measured ambient light conditions for subsequent processing by at least one electrical component, in particular in order to control an imaging unit of an image output apparatus, the present light conditions are detected by means of a plurality of light sensors, measuring signals are output as a function of the intensity of the light conditions recorded by the light sensors, and the measuring signals of the individual light sensors are then combined into at least one control signal in accordance with at least one predefined ratio. The control signal is adjusted with consideration of the orientation of at least one of the light sensors and is then output.04-19-2012
20120327051VISUAL DISPLAYS FOR AN AIRCRAFT FLIGHT DECK - A cockpit for an aircraft includes a windscreen through which light may pass, at least one seat spaced from and facing the windscreen, a flight deck having at least a portion disposed below the windscreen and having at least one head down display having an adjustable brightness that may be set by a brightness signal, a camera having a field of view including at least a portion of the at least one seat and outputting an image signal indicative of luminance information within the field of view, and a processor operably coupled to the camera and the head down display and configured to receive the image signal, determine a luminance of at least a portion of the field of view, determine a brightness for the head down display based on the determined luminance, and outputting to the head down display a brightness signal corresponding to the determined brightness.12-27-2012
20120139885LIQUID CRYSTAL DISPLAY DEVICE - According to the present invention, area control of a liquid crystal display device prevents luminance insufficiency attributing to leaking of illumination light between adjacent areas. A peak luminance detector detects a peak luminance area in which a luminance level is equal to or higher than a first threshold. A peripheral luminance detector detects luminance levels of peripheral areas located adjacent to the peak luminance area. When the average of the luminance levels of the peripheral areas is equal to or lower than a second threshold, a peak luminance corrector increases a light source luminance level of a backlight cell that corresponds to the peak luminance area.06-07-2012
20130016082ON DEMAND CALIBRATION OF IMAGING DISPLAYS - A self-calibrating imaging display system includes a display comprising a screen and at least one photosensor associated with the screen and generating an output signal correlating to measurements for at least one region of the screen. The system further includes a display adaptor configured for, during a calibration routine, generating a display test pattern in the at least one region of the screen comprising at least one measurement field that comprises a number of pixels less than a total number of pixels of the screen and causing the at least one measurement field to be stepped through a sequence of increasing display driving level values. The system also includes a calibration module configured for, during the calibration routine, receiving the output signal, comparing the output signal to reference data, and generating at least one correction factor based on the comparing.01-17-2013
20130016079REFLECTIVE DISPLAY DEVICE WITH AUXILIARY DISPLAYAANM WANG; CHUNG-WEIAACI Tu-ChengAACO TWAAGP WANG; CHUNG-WEI Tu-Cheng TWAANM LIN; CHIU-HSIUNGAACI Tu-ChengAACO TWAAGP LIN; CHIU-HSIUNG Tu-Cheng TWAANM HSIEH; KUAN-HONGAACI Tu-ChengAACO TWAAGP HSIEH; KUAN-HONG Tu-Cheng TW - A reflective display device includes a housing, a reflective display unit, an auxiliary display unit, a power supply, a wireless transceiver, a lighting unit, a light sensing unit, a light source control module, an identifying module, and a display control module. The power supply supplies power to the reflective display device and converts ambient light into electrical power and stores the electrical power. The wireless transceiver receives information transmitted from the electronic device. The lighting unit is fixed to the housing and illuminates the reflective display unit. The light sensing unit detects brightness of ambient light. The light source control module turns on/off the lighting unit. The identifying module identifies the type of the information. The display control module selectively controls the information to be displayed on the reflective display or the auxiliary display unit according to the type of the information.01-17-2013
20130016081DISPLAY APPARATUS HAVING UNIFORMITY CORRECTION FUNCTION AND CONTROL METHOD THEREOFAANM PARK; Ji-yongAACI Suwon-siAACO KRAAGP PARK; Ji-yong Suwon-si KRAANM BEON; Nam-kyunAACI SeoulAACO KRAAGP BEON; Nam-kyun Seoul KRAANM IM; Sang-KyunAACI SeoulAACO KRAAGP IM; Sang-Kyun Seoul KRAANM KIM; Dong-wookAACI Suwon-siAACO KRAAGP KIM; Dong-wook Suwon-si KR - A display apparatus having a uniformity adjustment function is provided, which includes a display unit which is divided into a plurality of local areas; a signal receiver which receives from a sensor light intensity data of each local area of the display unit; and a controller which analyzes the plurality of local areas for non-uniformity correction by comparing a first light intensity data of a current local area with second light intensity data of local areas which have been previously analyzed for the non-uniformity correction, and uses calibration information of a previously analyzed local area if its second light intensity data is within an error range of the first light intensity data, and performs a calibration process with respect to the current local area if there is no result within the error range, and outputs an image signal to the display unit.01-17-2013
20130016080BACKLIGHT ADJUSTMENT SYSTEM - A preferred embodiment relates to controlling the amount of backlight in an electronic display to account for the temperature in the backlight cavity. Another embodiment relates to a system for controlling the amount of backlight based on both the temperature in the backlight cavity and the amount of ambient light. The embodiments are especially useful in electronic displays which are subjected to cold or warm temperatures and displays which are placed in very bright environments. Exemplary embodiments allow the display to remain visible, while avoiding possible damage due to high levels of heat or cold.01-17-2013
20110157116DISPLAY DEVICE - Provided is a display device including a sensor row driver (06-30-2011
20110157115METHOD OF CORRECTING BRIGHTNESS OF ELECTRONIC DISPLAY - The present invention discloses a method of brightness correction for the electronic display, which consists of the following steps: take pictures of the electronic display; get the characteristic values of all the light-emitting components in the pictures; calculate the correction values of each light-emitting component with the characteristic values; correct the brightness of the display with the correction values. The present invention reduces the time cost of measuring the actual brightness values of the light-emitting components, and improves the efficiency of correcting the brightness uniformity of the electronic display.06-30-2011
20120242636DISPLAY DEVICE - Decrease in resolution is minimized even in a photosensor including a plurality of receivers. In a photosensor-equipped display device including a plurality of photosensor assemblies in a display region that displays an image, each of the photosensor assemblies includes: a plurality of sensor apertures (09-27-2012
20120242634DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - According to one embodiment, a display apparatus includes signal lines, and pixels. Each of the pixels includes a pixel electrode and a pixel control switch, and being classified into any of pixel groups. Each of the pixel groups includes a memory, and a sensor circuit which is configured to provide data for a detection signal to the memory when detecting the input information. The pixel control switch is configured to switch the voltage level of the pixel electrode in accordance with data for the display signal input via the signal line and the data for the detection signal input from the memory.09-27-2012
20080252628IMAGE PROCESSING APPARATUS AND METHOD OF REDUCING POWER CONSUMPTION OF SELF-LUMINOUS DISPLAY - An image processing apparatus and a method to reduce power consumption of a self-luminous display. The image processing apparatus includes a parameter selection unit to select a parameter to adjust a degree to which power consumption is reduced; a scale factor setting unit to extract a high-frequency component of a current pixel in an input image and to set a scale factor according to the selected parameter and a size of the extracted high-frequency component; and a multiplier to multiply the current pixel by the set scale factor and to output a result of the multiplication.10-16-2008
20100090997FUNCTIONAL DISPLAY TYPE ANTI-BLINDING DEVICE - Disclosed is a functional display type anti-blinding device having an anti-blinding plate for indication and control of a screen display condition and variation in light transmittance. The anti-blinding plate includes a filter to selectively filter light, a polarizer to polarize the filtered light, a shutter LCD having a variable light transmittance based on control of a light transmission control unit, a transparent dot-matrix LCD to indicate the screen display condition based on control of a display control unit, and a glass protector at the rear of the transparent dot-matrix LCD. The shutter LCD flickers several times to indicate an initial state and is turned off. The transparent dot-matrix LCD is turned on upon turn-off of the shutter LCD to indicate the screen display condition. The shutter LCD is turned on upon turn-off of the transparent dot-matrix LCD to transmit light based on preset light transmittance.04-15-2010
20130169607PROJECTION DISPLAY DEVICE, PROJECTION DISPLAY METHOD, AND COMPUTER PROGRAM - A projection display device according to the invention includes a separating unit that assigns X separation information for identifying a type of an image to each pixel by using a characteristic amount of the input image, a luminance detecting unit that detects a luminance of a screen, a first determining unit that determines a first target region indicating a region on which halftone processing of converting the number of gradations is performed on the input image by using the X separation information, and a halftone processing unit that executes the halftone processing that varies depending on the luminance on the first target region.07-04-2013
20100085339SENSOR ELEMENT AND METHOD OF DRIVING SENSOR ELEMENT, AND INPUT DEVICE, DISPLAY DEVICE WITH INPUT FUNCTION AND COMMUNICATION DEVICE - The present invention provides a sensor element including two diode elements connected in series to each other, and a capacitive element having one end connected to a junction point between the two diode elements. Each of the diode elements includes a semiconductor layer having a p-type semiconductor region and an n-type semiconductor region facing each other in an in-plane direction, an anode electrode connected to the p-type semiconductor region, a cathode electrode connected to the n-type semiconductor region, a gate insulting film adjoining the semiconductor layer in a stacking direction, and a gate electrode facing the semiconductor layer with the gate insulating film in between.04-08-2010
20130135268METHOD OF OPERATING A DISPLAY WITH GAPS, A BACKLIGHT AND A CAMERA - A method of operating a display with gaps in between the pixels, a primarily transparent backlight and a camera is disclosed. In an embodiment, the method comprises capturing an image in the camera through the primarily transparent backlight and gaps in between the pixels of the transmissive display during a capture period, not capturing an image in the camera during the display period and making the gaps in between the pixels of the transmissive display opaque during the display period.05-30-2013
20130176291METHODS AND DEVICES FOR CONTROLLING DISPLAY IN RESPONSE TO DEVICE ORIENTATION AND AMBIENT LIGHT LEVELS - Devices and methods are provided for controlling a display of a portable display device based on input form a plurality of ambient light photosensors positioned proximal to edges of the display. The display device includes one or more orientation sensors configured such that processing circuitry of the display device may determine, based on input from the orientation sensors, an operative orientation of the device relative to gravity, and subsequently identify an uppermost display edge. Signals from the ambient light photosensors proximal to the uppermost display edge are employed to control the display.07-11-2013
20130176292ULTRA-BRIGHT BACK-LIGHT LCD VIDEO DISPLAY - An ultra-bright back-light LCD video display comprises a housing containing a light source such as one or more LEDs. A collimating lens receives substantially all of the light generated by said light source, and directs such light through a polarizer. The polarizer output is sent to an LCD panel having an array of pixels dynamically controlled to permit light to pass through predetermined pixels. The LCD panel output passes through a diffuser forming a video image screen.07-11-2013
20130176293LUMINESCENCE SHOCK AVOIDANCE IN DISPLAY DEVICES - A luminescence shock avoidance algorithm selectively limits the brightness level of a display device when the display device is activated in a dark environment to prevent the temporary vision impairment that can occur when a display device is activated in a dark environment. The algorithm receives the state of the display (e.g. on or in standby mode), and can optionally receive an ambient lighting value from an ambient light sensor and a user-selectable manual brightness adjustment setting to determine whether luminescence shock avoidance should even be triggered, and if it is triggered, how much should the brightness level of the display be limited.07-11-2013
20130113768DISPLAY DEVICE AND DRIVE METHOD FOR SAME - Disclosed is a display device having an optical sensor with increased sensitivity. The display device is provided with: a display panel that includes a plurality of display pixel circuits (05-09-2013
20130100096DEVICE AND METHOD OF CONTROLLING BRIGHTNESS OF A DISPLAY BASED ON AMBIENT LIGHTING CONDITIONS - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for controlling brightness of a display based on ambient light conditions. In one aspect, a display device can include a reflective display and an auxiliary light source configured to provide supplemental light to the display. The display device further can include a sensor system configured to determine an illuminance of ambient light, and a controller configured to adjust the auxiliary light source to provide an amount of supplemental light to the display based at least in part on the determined illuminance. In one aspect, the amount of supplemental light remains substantially the same or substantially increases in response to increasing illuminance when the illuminance is below a first threshold, and substantially decreases in response to increasing illuminance when the illuminance is above a second threshold that is greater than or equal to the first threshold.04-25-2013
20130100097DEVICE AND METHOD OF CONTROLLING LIGHTING OF A DISPLAY BASED ON AMBIENT LIGHTING CONDITIONS - This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for controlling lighting of a display based on ambient light conditions. In one aspect, a display device can include a display and an auxiliary light source configured to provide supplemental light to the display. The display device further can include a sensor system configured to measure a diffuse illuminance of ambient light from a wide range of directions and configured to measure a directed illuminance of the ambient light from a relatively narrow range of directions. The display device further can include a controller configured to adjust the auxiliary light source to provide an amount of supplemental light to the display. The amount of supplemental light can be based at least in part on the measured directed illuminance and the measured diffuse illuminance of the ambient light.04-25-2013
20130113767IMAGE DISPLAY DEVICE, IMAGE DISPLAY METHOD, AND INTEGRATED CIRCUIT - An image display device including a light source, an image display unit including plural pixels, a deflection unit which includes plural regions and deflects, for each of the plural regions, a light beam traveling from the light source toward the image display unit, and a light control unit which controls the deflection unit to cause each of light beams passing through a corresponding one of the regions of the deflection unit to be deflected toward one of a first point and a second point that are different from each other, according to a pixel value of the pixel corresponding to the region.05-09-2013
20130141409GAMMA CORRECTION METHOD - A gamma correction method includes displaying a reference pattern on a panel, acquiring first luminance information including a luminance value of each point of the panel by taking an image of the panel using a surface distribution luminance meter, acquiring first correction luminance information by comparing the first luminance information with average luminance information, displaying a gradation pattern on the panel, acquiring second luminance information by taking an image of the panel using the surface distribution luminance meter, correcting and standardizing the second luminance information based on the first correction luminance information, and obtaining a gamma curve from the gradation pattern having the corrected second luminance information.06-06-2013
20130141406COLOR MULTICHANNEL DISPLAY SYSTEM USING ILLUMINATION DETECTOR - A color display system includes an illumination system that provides a temporal sequence of illumination color channels, and a monochrome reflective display system including a directly-viewable display surface having display pixels with a controllable reflectance. The display system detects an active illumination color channel being provided by the illumination system and controls the reflectance of the display pixels according to image data for a corresponding image color channel. When no illumination color channel is being provided to the display surface, the display pixels are controlled to display a monochrome image determined from the color image data.06-06-2013
20130141407STEREOSCOPIC DISPLAY SYSTEM USING LIGHT-SOURCE DETECTOR - A stereoscopic display system for displaying stereoscopic image data includes an illumination system that provides a temporal sequence of illumination from left-eye and right-eye light sources having different optical properties, and a monochrome reflective display system including a directly-viewable display surface having display pixels with a controllable reflectance. The illumination system is selectively connectable to the display. When the illumination system and display system are connected, the display system synchronously controls the reflectance of the display pixels according to image data for left-eye and right-eye images. When the illumination system and display system are not connected, the display pixels are controlled to display a monoscopic image determined from the stereoscopic image data. The illumination system optionally provides illumination using a plurality of illumination color channels to provide color stereoscopic images.06-06-2013
20130141408Automatic Optical Detection Method and Optical Automatic Detector - The present invention relates to an automatic optical detection method and an optical automatic detector. The automatic optical detection method includes the following steps: in the step of colored light projection, the lamplight with tricolor light is uniformly projected on an object to be detected to form images with different colors; gray-scale information corresponding to different zones of the images is obtained, then, an automatic optical inspection standard image is generated, and the automatic optical inspection standard image and a prestored reference image are contrastively detected. In the present invention, only the gray-scale information of the images needs processing, so the data quantity and the processing difficulty of an image processing unit and a statistical analysis unit are reduced, which is favorable for increasing the reliability, accuracy, repeatability and speed of data acquisition, and the present invention reduces the requirement of the detector, which is favorable for reducing the input cost of the detector.06-06-2013
20080198151DRIVING METHOD AND DRIVING APPARATUS OF LIQUID CRYSTAL DISPLAY - A driving method includes sensing illuminance of ambient light determining a first contrast ratio based on the sensed illuminance, determining a second contrast ratio and a relative ratio of the contrast ratio, determining a gradient of a compensation gamma curve using the relative ratio, determining an average gray of input data signals, and determining the compensation gamma curve.08-21-2008
20110273414ILLUMINANCE DETECTION METHOD, FLIP-TYPE ELECTRONIC DEVICE AND PROGRAM - For solving a problem that it cannot measure illuminance level around user interface correctly, an illuminance detection method includes a first step of detecting an open operation of a flip-type electronic device having the user interface located at an inner side in a closed state, and a second step of measuring illuminance level in a vicinity of an area where the user interface is exposed in an opened state of the flip-type electronic device when the open operation is detected.11-10-2011
20110273413DISPLAY DEVICE AND USE THEREOF - The display device includes a sensor system with at least one sensor for detecting the intensity or colour of light emitted from at least one display area of the display device into the viewing angle of the display device. The sensor system further includes in one embodiment an at least partially transparent sensor. The sensor system includes in another embodiment at least one optical coupling device including a light guide member and a incoupling member for guiding or directing, e.g. deflecting, reflecting, bending, scattering, diffracting, at least one part of the light emitted from the display area to the corresponding sensor, wherein the sensor is located outside or at least partially outside the viewing angle of the display device.11-10-2011
20110221725TWO-DIMENSIONAL SENSOR ARRAY, DISPLAY DEVICE, AND ELECTRONICS DEVICE - A display device according to the present invention includes: a plurality of pixels arranged in matrix; photoelectric elements being provided in each of the pixels and each outputting a signal with a value according to the quantity of light received by the photoelectric element, the photoelectric elements forming photoelectric element groups (PDs(n)) in each of which the photoelectric elements arranged along a one-dimensional direction are grouped; and resetting wirings (Vrts(n+1)), each of which is connected to the anode side electrodes of the photoelectric elements in the corresponding one (PDs(n)) of the photoelectric element groups commonly, and is shared by an adjacent one (PDs(n+1)) of the photoelectric element groups. This configuration makes it possible to provide such a display device having a pixel including an optical sensor incorporated therein, that is not affected by the resolution and the performance of an output AMP and is capable of preventing a decrease in the aperture ratio of the pixel.09-15-2011
20110221723DRIVING METHOD OF DISPLAY DEVICE - A display device has a pixel array including a plurality of pixels arranged in a matrix and a backlight provided to face a substrate over which the pixel array is formed, and display element portions photosensor portions are formed in the pixels. In the display device, in one frame period for displaying a black image which is interposed between two successive periods forming an image or a backlighting shutoff period in one frame period in which the display element portion holds an image, an accumulation operation of the photosensor portion is performed, the pixels are successively selected for each row, and a signal corresponding to the potential of a signal charge accumulation portion of the photosensor portion is output.09-15-2011
20110248973BRIGHTNESS CONTROL DRIVE CIRCUIT FOR A CURRENT-DRIVEN DISPLAY DEVICE - A current-driven display device includes sub-pixel drive circuits with integral photo-sensitive circuits that modify the respective sub-pixel drive currents as a function of the locally sensed ambient light level. The photo-sensitive circuit may include a photo-transistor or photo-resistor connected in the output circuit of a drive transistor used to control the on-off state of a respective sub-pixel element, or the photo-sensitive circuit may include a photo-resistor that adjusts a control voltage or current supplied to an input circuit of the drive transistor. In any event, the photo-sensitive circuits individually and independently adjust the drive current, and hence the luminance, of each sub-pixel element based on the locally sensed ambient light level to locally and dynamically compensate for changes in ambient light impinging on the display device.10-13-2011
20130147778Ambient Black Level - Techniques for operating a display system in a wide range of ambient light conditions are provided. An intensity of ambient light on a display panel may be detected. The display panel may be illuminated by light sources in addition to the ambient light. An individual light source may be individually settable to an individual light output level. If it is determined that the luminance level of the ambient light is above a minimum ambient luminance threshold, an ambient black level may be calculated using the intensity of ambient light. Light output levels of one or more of the light sources may be elevated to first light output levels. Here, the one or more light sources may be designated to illuminate one or more dark portions of an image. The first light output levels may create a new black level equaling the determined ambient black level.06-13-2013
20130147776SYSTEM AND METHOD FOR AUTOMATICALLY ADJUSTING ELECTRONIC DISPLAY SETTINGS - Described are systems and methods for automatically adjusting a set of display settings. At least one image sample is displayed at a first display according to display settings of the first display. Electromagnetic radiation generated from the first display is collected. The electromagnetic radiation includes first image data related to the at least one image sample at the first display. An image sample is displayed at a second display according to display settings of the second display. Electromagnetic radiation generated from the second display is collected. The electromagnetic radiation includes second image data related to the image sample at the second display. A margin of error is determined between the first image data and the second image data. The display settings of the second display are adjusted to reduce the margin of error.06-13-2013
20130147777Application of MEMs Pixels in Display and Imaging Devices - MEMS shutters are applied in displays and imaging devices. In a display, sensors may detect light from a light source that is back-reflected by a MEMS shutter and/or ambient light that enters through the MEMS shutter. The sensors may be used to monitor performance of the light source and/or ambient lighting conditions. In an imaging device, MEMS shutters may be applied to selectively block light to prevent overexposed areas within an image.06-13-2013
20100289784DISPLAY DEVICE HAVING OPTICAL SENSORS - The present invention relates to a display device in which a plurality of optical sensors are provided in a display panel. A liquid crystal panel with built-in sensors (11-18-2010
20110242075OPTICAL SENSOR DEVICE, DISPLAY APPARATUS, AND METHOD FOR DRIVING OPTICAL SENSOR DEVICE - An optical sensor device includes a plurality of optical sensor units two-dimensionally arranged, a scan driver, and a detection driver. The scan driver sets optical sensor units, in each row, in a selected state. The detection driver acquires detection signals corresponding to illuminance of incident light on the optical sensor units. Each of the optical sensor units comprises a first optical sensor including a first photoelectric conversion section blocked from light and a second optical sensor including a second photoelectric conversion section configured to change the illuminance in response to an externally applied external force. The detection driver maintains each voltage of electrodes of the first optical sensors and each voltage of electrodes of the second optical sensors in equal voltage levels to each other, and acquires a plurality of voltage signals in parallel.10-06-2011
20110242074METHOD AND SYSTEM FOR COMPENSATING AGEING EFFECTS IN LIGHT EMITTING DIODE DISPLAY DEVICES - The present invention relates to a method for compensating ageing effects of pixel outputs displaying an image on a display device. The method involves displaying a first image on an active display area (10-06-2011
20110234559LIGHT SENSING CIRCUIT, BACKLIGHT CONTROL APPARATUS HAVING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - A light sensing circuit capable of enhancing a reliability by lowering a dependency on a temperature change without using a resistor, a backlight control apparatus having the same, and an LCD device having the same. The light sensing circuit includes a first MOS-transistor; and a second MOS-transistor serially connected to the first MOS-transistor between a first power terminal and a ground terminal, in which a second power terminal is connected to each gate terminal of the first MOS-transistor and the second MOS-transistor, and an optical amount detecting terminal is connected to a common connection point between a drain terminal of the first MOS-transistor and a source terminal of the second MOS-transistor.09-29-2011
20110234557ELECTROPHORETIC DISPLAY DEVICE AND METHOD FOR DRIVING SAME - An electrophoretic display device is provided. The display device includes a first substrate, a second substrate opposite to the first substrate, a plurality of particles disposed between the two substrates, a driving circuit and a sensor. The driving circuit is configured for a display mode by imagewise driving the particles to display one or more images and configured for an idle mode by causing the particles to move away from at least one of the two substrates and to be non-imagewise dispersed in between the two substrates so as to form a substantially non-imagewise bistable state between the two substrates in the idle mode. The sensor senses or detects the usage status of the display device or the environmental parameters associated with a surrounding environment. The driving circuit is configured for either the display mode or the idle mode in accordance with the usage status or the environmental parameters.09-29-2011
20100315395IMAGE DISPLAY METHOD AND APPARATUS - Disclosed is an image display method in an image processing apparatus, the method including the steps of: sequentially generating frame images according to each color in rotation in such a manner as to generate one frame image by extracting pixel data corresponding to one color among red (R), green (G), and blue (B) colors from an entire pixel array of an image sensor, the pixel data matching a predetermined resolution; and consecutively displaying the frame images according to each color.12-16-2010
20100315394DISPLAY APPARATUS - The present invention provides a display apparatus with image capturing function including optical sensors in its pixels, particularly a display apparatus capable of capturing an image while suppressing the power consumption. The display apparatus includes: optical sensors and sensor wirings provided in a pixel region of an active matrix substrate; a sensor row driver for selecting the optical sensors row by row; a sensor pixel readout circuit for reading out signal charges from the optical sensors in the selected row; a sensor column amplifier including the number of amplifiers corresponding to the rows of the optical sensors for generating a sensor output voltage; a sensor column scanning circuit for selecting the signal charges readout by the sensor pixel readout circuit column by column so that the selected signal charges being outputted to the sensor column amplifier; and a buffer amplifier (12-16-2010
20130155041DISPLAY CONTROL DEVICE AND CONTROL METHOD FOR DISPLAY CONTROL DEVICE - A display control device including a display unit includes a proximity detection unit configured to output a proximity detection signal when a predetermined condition to determine whether an object approaches the display control device is satisfied, an illuminance detection unit configured to detect illuminance of ambient light, and a control unit configured to control the display unit not to be turned off when the proximity detection unit outputs the proximity detection signal while the illuminance of ambient light detected by the illuminance detection unit is greater than a predetermined value, and to control the display unit to be turned off when the proximity detection unit outputs the proximity detection signal while the illuminance of ambient light detected by the illuminance detection unit is equal to or less than the predetermined value.06-20-2013
20130155042IMAGE CORRECTION DATA GENERATING SYSTEM, IMAGE CORRECTION DATA GENERATING METHOD, AND IMAGE CORRECTION DATA GENERATING PROGRAM FOR DISPLAY PANEL USING UNPOLISHED GLASS - An image correction data generating system for a display panel that uses unpolished glass is equipped with a signal generator, an imager, and a controller. The signal generator supplies the display panel with a signal for causing that display panel to output an image. The imager captures an output image. The imager is able to resolve an area smaller than the individual pixel sizes of a plurality of pixels. The controller is equipped with an instructing unit, an image acquirer, a high-pass filter, and a correction data generator. The instructing unit outputs instructions for supplying a signal value shared across the entire surface of the display panel to the signal generator. The image acquirer acquires output image data from the imager. The high-pass filter computes high-pass data by applying high-pass filtering to the output image data. The correction data generator outputs an image correction table corresponding to the high-pass data.06-20-2013
20130181962LED ARRAY WITH PHOTODETECTOR - Embodiments of the present invention provide for an array, and corresponding method of forming an array, that includes a plurality of light emitting devices. The light emitting devices are disposed over a substrate, and a photodetector detects light emitted through the substrate from the light emitting devices. Further, a substantially constant brightness may be maintained in a plurality of light emitting devices disposed over the upper surface of a substrate in an array. Light emitted through the substrate from each of the light emitting devices is measured, and the voltage level applied to each of the light emitting devices is varied to maintain a substantially constant brightness level of light emitted from the light emitting devices.07-18-2013
20130181958DISPLAY SYSTEM AND METHOD FOR ADJUSTING BRIGHTNESS OF DISPLAY DEVICE - A display system includes a display device, a solar panel, a voltage reader, a processor and a brightness control unit. The solar panel generates a voltage according to an intensity of sunlight. The voltage reader receives the voltage from the solar panel and transfers to the processor. The processor receives the voltage of the voltage reader and generates a control signal according to the voltage of the voltage reader. The brightness control unit receives the control signal and adjusts the brightness of the display device according to the control signal.07-18-2013
20130181959SIGNAL OUTPUT APPARATUS AND SIGNAL TRANSMITTING AND RECEIVING SYSTEM - A signal output apparatus including a light-emitting element, first brightness control circuitry and second brightness control circuitry. The first brightness control circuitry is supplied with a first signal and controls a brightness of the light-emitting element according to the first signal so as to illuminate the light-emitting element at a first brightness when the first signal is ON. The second brightness control circuitry is supplied with a second signal including at least first and second states and controls the light-emitting element to be illuminated at a second brightness different from the first brightness if the second signal assumes the first state when the light-emitting element is illuminated by the first control circuitry at the first brightness according to the first signal.07-18-2013
20130181960METHOD AND APPARATUS FOR CONTROLLING BRIGHTNESS OF DISPLAY IN MOBILE DEVICE - A method and an apparatus for automatically controlling the brightness of a display unit in a mobile device according to external illuminance are provided. The brightness control method includes measuring a gradient of the mobile device, measuring an external illuminance through at least one of an illuminance sensor and a camera, depending on the measured gradient of the mobile device, and regulating the brightness of the mobile device, based on the measured external illuminance.07-18-2013
20130181961DISPLAY DEVICE AND CONTROL METHOD THEREFOR - The present invention in its first aspect provides a display apparatus including a light emitting apparatus having a plurality of light sources, a brightness sensor that measures an emission brightness of the light emitting apparatus corresponding to each of blocks, a temperature sensor that measures a temperature of the light emitting apparatus corresponding to each of the blocks, an acquisition unit that acquires the measured value of the temperature sensor for each of the blocks, and an emission brightness control unit that performs processing of acquiring the measured value of the brightness sensor and controlling the emission brightness based on the measured value of the brightness sensor, in order from a block with a greatest difference between a temperature represented by the measured value acquired by the acquisition unit and a temperature represented by the measured value acquired in the past by the acquisition unit.07-18-2013
20110292009ELECTRONIC DEVICE AND METHOD FOR AUTOMATICALLY ADJUSTING OPENING ANGLE THEREOF - An electronic device includes a base, a display pivotably connecting to the base, a detecting unit, a processing unit, and a driving unit. The detecting unit is for detecting a positional relationship between the display and a user in front of the display. The processing unit is for generating an adjusting signal according to the positional relationship. The driving unit is for adjusting an opening angle defined between the display and the base according to the adjusting signal.12-01-2011
20130120332DISPLAY DEVICE - A display device including optical sensors in a pixel region, in which the number of bus lines for supplying driving signals to the optical sensors is reduced, is provided. The display device includes a display pixel circuit (05-16-2013
20110310073PORTABLE TERMINAL, DISPLAY CONTROL PROGRAM, AND DISPLAY CONTROL METHOD - A mobile terminal controls a display unit to display a first image in a first display area at a first luminance and to display a second image in a second display area at the first luminance, under a first condition in which brightness measured by a optical sensor is lower than a first threshold, and controls the display unit to display a third image in the first display area at a second luminance that is higher than the first luminance and to set a luminance in the second display area to a third luminance that is lower than the first luminance, under a second condition in which the measured brightness is equal to or higher than the first threshold, a content of the third image being determined so as to include a content of the first image and a content of the second image.12-22-2011
20110310072DISPLAY PANEL AND DISPLAY DEVICE - A display part (12-22-2011
20110310071ENERGY EFFICIENT DISPLAY SYSTEM - A display for that includes an ambient light sensor suitable to receive ambient light such that the display modifies its power usage based upon the amount of light sensed by the ambient light sensor. An energy interface receives an energy signal from a location remote to the display indicative of energy usage. The energy interface, in response to the energy signal, modifies the amount of light received by the ambient light sensor.12-22-2011
20120019496OPTICAL SENSOR CIRCUIT, DISPLAY DEVICE AND METHOD FOR DRIVING OPTICAL SENSOR CIRCUIT - A field-effect transistor (01-26-2012
20120019495DETECTING DEVICE CAPABLE OF ECONOMIZING ELECTRICITY AND DETECTING METHOD THEREOF - A detecting device capable of economizing electricity includes a first sensor for sensing a first physical quantity, an electronic paper (E-paper) display for displaying information of the first physical quantity, and a controller electrically connected to the first sensor and the E-paper display for controlling the E-paper display to display the information of the changed first physical quantity when the first sensor senses the changed first physical quantity. The controller is further for closing the E-paper display when the first sensor does not sense that the first physical quantity is changed, so that the E-paper display continues displaying the last first physical quantity sensed by the first sensor before the E-paper display is closed.01-26-2012
20120019494ALIGNMENT FACTOR FOR AMBIENT LIGHTING CALIBRATION - A method, system, and apparatus that can be used to operate a display device in an energy efficient manner. The energy efficient display device can effectively and efficiently compensate for changes in ambient light incident at a display screen of the display device using an internal ambient light sensor to provide control signals to a backlight driver. Data from the ambient light sensor can be at least partially corrected to correspond more closely to a response of a Lambertian responsive light sensor01-26-2012
20120019493DISPLAY BRIGHTNESS CONTROL TEMPORAL RESPONSE - Methods and devices are provided for controlling the brightness of a display for an electronic device based on ambient light conditions. In one embodiment, an electronic device may employ one or more brightness adjustment profiles that define response rates for changing brightness levels based on ambient light levels. The response rates may vary depending on the magnitude and/or direction of change in the ambient light levels. In certain embodiments, the response rates may be designed to approximate the physical response of the human vision system. Further, in certain embodiments, noise reduction techniques may be employed by adjusting the response rates based on the magnitude of the change in the ambient light level and/or based on whether the display is operating at steady state or executing a brightness adjustment.01-26-2012
20120019492DISPLAY BRIGHTNESS CONTROL BASED ON AMBIENT LIGHT LEVELS - Methods and devices are provided for controlling the brightness of a display for an electronic device based on ambient light conditions. In one embodiment, an electronic device may employ one or more brightness adjustment profiles for changing the brightness of a display based on the ambient light level. The brightness adjustment profiles may include two or more sections, each corresponding to different ambient light levels, which may be adjusted independently of one another. The different sections may allow a user to customize brightness adjustments for different ambient light conditions. In certain embodiments, the slope and/or offset of a section may be adjusted in response to receiving a user input that changes the brightness setting for a certain ambient light level.01-26-2012
20130194244METHODS AND APPARATUSES OF EYE ADAPTATION SUPPORT - A device for reducing the brightness level of a portion of a display area of an imaging unit. The device comprises a gaze tracking unit adapted to assess eye gazing direction of an observer, a controllable transparency panel adapted to be mounted in front of a display area of an imaging unit and to display a changeable brightness reduction pattern having a original display brightness portion and a darkening portion therearound, and a controller which instructs the controllable transparency panel to change the brightness reduction pattern according to the eye gazing direction in real time so that the location of the original display brightness portion being correlated with the location of at least one fovea of the observer in real time.08-01-2013
20120293475DISPLAY DEVICE - Provided is a display device that has excellent accuracy in image capturing by improving linearity of sensitivity characteristics of a photodiode. An optical sensor provided on an active matrix substrate of the display device includes; a photodiode (D11-22-2012
20120044224LIQUID CRYSTAL DISPLAY DEVICE - According to a liquid crystal display device 02-23-2012
20130201167THREE-DIMENSIONAL IMAGE SENSOR AND MOBILE DEVICE INCLUDING SAME - A 3D image sensor includes a depth pixel that includes; a photo detector generating photo-charge, first and second floating diffusion regions, a first transfer transistor transferring photo-charge to the first floating diffusion region during a first transfer period in response to a first transfer gate signal, a second transfer transistor transferring photo-charge to the second floating diffusion region during a second transfer period in response to a second transfer gate signal, and an overflow transistor that discharges surplus photo-charge in response to a drive gate signal. Control logic unit controlling operation of the depth pixel includes a first logic element providing the first transfer gate signal, a second logic element providing the second transfer gate signal, and another logic element providing the drive gate signal to the overflow transistor when the first transfer period overlaps, at least in part, the second transfer period.08-08-2013
20130201168Digital Photo Frame with Power Saving Function and Related Power Saving Method - A digital photo frame having power saving functions includes a display panel, a power generation unit for switching a system power according to a power control signal, a passive infrared sensor installed on the display panel for detecting whether a user exists within a specific range to generate a user detection signal, a central processing unit for adjusting backlight intensity of the display panel when the system power is provided by the power generation unit according to the user detection signal and for generating a power switch-off signal when the backlight intensity of the display panel is turned off according to the user detection signal, and a power control unit for generating the power control signal to switch off the system power when the backlight intensity of the display panel is adjusted to be switched off according to the power switch-off signal.08-08-2013
20120068981LUMINESCENCE SHOCK AVOIDANCE IN DISPLAY DEVICES - A luminescence shock avoidance algorithm is disclosed to selectively limit the brightness level of a display device when the display device is activated in a dark environment to prevent the temporary vision impairment that can occur when a display device is activated in a dark environment. The algorithm receives the state of the display (e.g. on or in standby mode), and can optionally receive an ambient lighting value from an ambient light sensor and a user-selectable manual brightness adjustment setting to determine whether luminescence shock avoidance should even be triggered, and if it is triggered, how much should the brightness level of the display be limited.03-22-2012
20120086684Liquid Crystal Display Device And Light Source Control Method - Disclosed is a liquid crystal display device including: a VA-IPS mode liquid crystal display panel; a backlight unit incorporating a PWM dimming type light source; and a control unit that controls the liquid crystal display panel and the backlight unit, in which the control unit obtains response speed data of orientation change of liquid crystal molecules, and changes a duty factor of a PWM dimming signal according to the response speed data. In a case where the response speed of the liquid crystal molecules is relatively high, LEDs are driven with a relatively small duty factor. In a case where the response speed of the liquid crystal molecules is relatively low, the LEDs are driven with a relatively large duty factor, and black insertion is not performed. The liquid crystal display device prevents an image quality malfunction (multiple outlines).04-12-2012
20130207951APPARENT DISPLAY RESOLUTION ENHANCEMENT FOR MOVING IMAGES - A method for displaying a digital image on a display, the digital image having a higher resolution than the display, the method includes: generating a sequence of digital subimages having display resolution, based on the digital image; and displaying the digital subimages in sequence; characterized in that the sequence of digital subimages are generated based on a model of the retina.08-15-2013

Patent applications in class Light detection means (e.g., with photodetector)